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Commit 50ee9339 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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Merge 2.6.39-rc4 into usb-next 

This is needed to help resolve some xhci issues and other minor
differences.
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parents f0e615c3 98346f7d
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Showing with 4776 additions and 657 deletions
arch/arm/mach-exynos4/Kconfig
View file @ 50ee9339
......@@ -170,6 +170,7 @@ config MACH_NURI
select S3C_DEV_HSMMC3
select S3C_DEV_I2C1
select S3C_DEV_I2C5
select S5P_DEV_USB_EHCI
select EXYNOS4_SETUP_I2C1
select EXYNOS4_SETUP_I2C5
select EXYNOS4_SETUP_SDHCI
......
arch/arm/mach-exynos4/Makefile
View file @ 50ee9339
......@@ -54,3 +54,5 @@ obj-$(CONFIG_EXYNOS4_SETUP_I2C7) += setup-i2c7.o
obj-$(CONFIG_EXYNOS4_SETUP_KEYPAD) += setup-keypad.o
obj-$(CONFIG_EXYNOS4_SETUP_SDHCI) += setup-sdhci.o
obj-$(CONFIG_EXYNOS4_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
obj-$(CONFIG_USB_SUPPORT) += usb-phy.o
arch/arm/mach-exynos4/cpu.c
View file @ 50ee9339
......@@ -97,7 +97,12 @@ static struct map_desc exynos4_iodesc[] __initdata = {
.pfn = __phys_to_pfn(EXYNOS4_PA_SROMC),
.length = SZ_4K,
.type = MT_DEVICE,
},
}, {
.virtual = (unsigned long)S5P_VA_USB_HSPHY,
.pfn = __phys_to_pfn(EXYNOS4_PA_HSPHY),
.length = SZ_4K,
.type = MT_DEVICE,
}
};
static void exynos4_idle(void)
......
arch/arm/mach-exynos4/include/mach/map.h
View file @ 50ee9339
......@@ -101,6 +101,9 @@
#define EXYNOS4_PA_SROMC 0x12570000
#define EXYNOS4_PA_EHCI 0x12580000
#define EXYNOS4_PA_HSPHY 0x125B0000
#define EXYNOS4_PA_UART 0x13800000
#define EXYNOS4_PA_IIC(x) (0x13860000 + ((x) * 0x10000))
......@@ -143,6 +146,7 @@
#define S5P_PA_SROMC EXYNOS4_PA_SROMC
#define S5P_PA_SYSCON EXYNOS4_PA_SYSCON
#define S5P_PA_TIMER EXYNOS4_PA_TIMER
#define S5P_PA_EHCI EXYNOS4_PA_EHCI
#define SAMSUNG_PA_KEYPAD EXYNOS4_PA_KEYPAD
......
arch/arm/mach-exynos4/include/mach/regs-pmu.h
View file @ 50ee9339
......@@ -33,6 +33,9 @@
#define S5P_EINT_WAKEUP_MASK S5P_PMUREG(0x0604)
#define S5P_WAKEUP_MASK S5P_PMUREG(0x0608)
#define S5P_USBHOST_PHY_CONTROL S5P_PMUREG(0x0708)
#define S5P_USBHOST_PHY_ENABLE (1 << 0)
#define S5P_MIPI_DPHY_CONTROL(n) S5P_PMUREG(0x0710 + (n) * 4)
#define S5P_MIPI_DPHY_ENABLE (1 << 0)
#define S5P_MIPI_DPHY_SRESETN (1 << 1)
......
arch/arm/mach-exynos4/include/mach/regs-usb-phy.h 0 → 100644
View file @ 50ee9339
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __PLAT_S5P_REGS_USB_PHY_H
#define __PLAT_S5P_REGS_USB_PHY_H
#define EXYNOS4_HSOTG_PHYREG(x) ((x) + S5P_VA_USB_HSPHY)
#define EXYNOS4_PHYPWR EXYNOS4_HSOTG_PHYREG(0x00)
#define PHY1_HSIC_NORMAL_MASK (0xf << 9)
#define PHY1_HSIC1_SLEEP (1 << 12)
#define PHY1_HSIC1_FORCE_SUSPEND (1 << 11)
#define PHY1_HSIC0_SLEEP (1 << 10)
#define PHY1_HSIC0_FORCE_SUSPEND (1 << 9)
#define PHY1_STD_NORMAL_MASK (0x7 << 6)
#define PHY1_STD_SLEEP (1 << 8)
#define PHY1_STD_ANALOG_POWERDOWN (1 << 7)
#define PHY1_STD_FORCE_SUSPEND (1 << 6)
#define PHY0_NORMAL_MASK (0x39 << 0)
#define PHY0_SLEEP (1 << 5)
#define PHY0_OTG_DISABLE (1 << 4)
#define PHY0_ANALOG_POWERDOWN (1 << 3)
#define PHY0_FORCE_SUSPEND (1 << 0)
#define EXYNOS4_PHYCLK EXYNOS4_HSOTG_PHYREG(0x04)
#define PHY1_COMMON_ON_N (1 << 7)
#define PHY0_COMMON_ON_N (1 << 4)
#define PHY0_ID_PULLUP (1 << 2)
#define CLKSEL_MASK (0x3 << 0)
#define CLKSEL_SHIFT (0)
#define CLKSEL_48M (0x0 << 0)
#define CLKSEL_12M (0x2 << 0)
#define CLKSEL_24M (0x3 << 0)
#define EXYNOS4_RSTCON EXYNOS4_HSOTG_PHYREG(0x08)
#define HOST_LINK_PORT_SWRST_MASK (0xf << 6)
#define HOST_LINK_PORT2_SWRST (1 << 9)
#define HOST_LINK_PORT1_SWRST (1 << 8)
#define HOST_LINK_PORT0_SWRST (1 << 7)
#define HOST_LINK_ALL_SWRST (1 << 6)
#define PHY1_SWRST_MASK (0x7 << 3)
#define PHY1_HSIC_SWRST (1 << 5)
#define PHY1_STD_SWRST (1 << 4)
#define PHY1_ALL_SWRST (1 << 3)
#define PHY0_SWRST_MASK (0x7 << 0)
#define PHY0_PHYLINK_SWRST (1 << 2)
#define PHY0_HLINK_SWRST (1 << 1)
#define PHY0_SWRST (1 << 0)
#define EXYNOS4_PHY1CON EXYNOS4_HSOTG_PHYREG(0x34)
#define FPENABLEN (1 << 0)
#endif /* __PLAT_S5P_REGS_USB_PHY_H */
arch/arm/mach-exynos4/mach-nuri.c
View file @ 50ee9339
......@@ -30,6 +30,8 @@
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/sdhci.h>
#include <plat/ehci.h>
#include <plat/clock.h>
#include <mach/map.h>
......@@ -262,6 +264,16 @@ static struct i2c_board_info i2c5_devs[] __initdata = {
/* max8997, To be updated */
};
/* USB EHCI */
static struct s5p_ehci_platdata nuri_ehci_pdata;
static void __init nuri_ehci_init(void)
{
struct s5p_ehci_platdata *pdata = &nuri_ehci_pdata;
s5p_ehci_set_platdata(pdata);
}
static struct platform_device *nuri_devices[] __initdata = {
/* Samsung Platform Devices */
&emmc_fixed_voltage,
......@@ -270,6 +282,7 @@ static struct platform_device *nuri_devices[] __initdata = {
&s3c_device_hsmmc3,
&s3c_device_wdt,
&s3c_device_timer[0],
&s5p_device_ehci,
/* NURI Devices */
&nuri_gpio_keys,
......@@ -291,6 +304,9 @@ static void __init nuri_machine_init(void)
i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));
i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
nuri_ehci_init();
clk_xusbxti.rate = 24000000;
/* Last */
platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
}
......
arch/arm/mach-exynos4/usb-phy.c 0 → 100644
View file @ 50ee9339
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <mach/regs-pmu.h>
#include <mach/regs-usb-phy.h>
#include <plat/cpu.h>
#include <plat/usb-phy.h>
static int exynos4_usb_phy1_init(struct platform_device *pdev)
{
struct clk *otg_clk;
struct clk *xusbxti_clk;
u32 phyclk;
u32 rstcon;
int err;
otg_clk = clk_get(&pdev->dev, "otg");
if (IS_ERR(otg_clk)) {
dev_err(&pdev->dev, "Failed to get otg clock\n");
return PTR_ERR(otg_clk);
}
err = clk_enable(otg_clk);
if (err) {
clk_put(otg_clk);
return err;
}
writel(readl(S5P_USBHOST_PHY_CONTROL) | S5P_USBHOST_PHY_ENABLE,
S5P_USBHOST_PHY_CONTROL);
/* set clock frequency for PLL */
phyclk = readl(EXYNOS4_PHYCLK) & ~CLKSEL_MASK;
xusbxti_clk = clk_get(&pdev->dev, "xusbxti");
if (xusbxti_clk && !IS_ERR(xusbxti_clk)) {
switch (clk_get_rate(xusbxti_clk)) {
case 12 * MHZ:
phyclk |= CLKSEL_12M;
break;
case 24 * MHZ:
phyclk |= CLKSEL_24M;
break;
default:
case 48 * MHZ:
/* default reference clock */
break;
}
clk_put(xusbxti_clk);
}
writel(phyclk, EXYNOS4_PHYCLK);
/* floating prevention logic: disable */
writel((readl(EXYNOS4_PHY1CON) | FPENABLEN), EXYNOS4_PHY1CON);
/* set to normal HSIC 0 and 1 of PHY1 */
writel((readl(EXYNOS4_PHYPWR) & ~PHY1_HSIC_NORMAL_MASK),
EXYNOS4_PHYPWR);
/* set to normal standard USB of PHY1 */
writel((readl(EXYNOS4_PHYPWR) & ~PHY1_STD_NORMAL_MASK), EXYNOS4_PHYPWR);
/* reset all ports of both PHY and Link */
rstcon = readl(EXYNOS4_RSTCON) | HOST_LINK_PORT_SWRST_MASK |
PHY1_SWRST_MASK;
writel(rstcon, EXYNOS4_RSTCON);
udelay(10);
rstcon &= ~(HOST_LINK_PORT_SWRST_MASK | PHY1_SWRST_MASK);
writel(rstcon, EXYNOS4_RSTCON);
udelay(50);
clk_disable(otg_clk);
clk_put(otg_clk);
return 0;
}
static int exynos4_usb_phy1_exit(struct platform_device *pdev)
{
struct clk *otg_clk;
int err;
otg_clk = clk_get(&pdev->dev, "otg");
if (IS_ERR(otg_clk)) {
dev_err(&pdev->dev, "Failed to get otg clock\n");
return PTR_ERR(otg_clk);
}
err = clk_enable(otg_clk);
if (err) {
clk_put(otg_clk);
return err;
}
writel((readl(EXYNOS4_PHYPWR) | PHY1_STD_ANALOG_POWERDOWN),
EXYNOS4_PHYPWR);
writel(readl(S5P_USBHOST_PHY_CONTROL) & ~S5P_USBHOST_PHY_ENABLE,
S5P_USBHOST_PHY_CONTROL);
clk_disable(otg_clk);
clk_put(otg_clk);
return 0;
}
int s5p_usb_phy_init(struct platform_device *pdev, int type)
{
if (type == S5P_USB_PHY_HOST)
return exynos4_usb_phy1_init(pdev);
return -EINVAL;
}
int s5p_usb_phy_exit(struct platform_device *pdev, int type)
{
if (type == S5P_USB_PHY_HOST)
return exynos4_usb_phy1_exit(pdev);
return -EINVAL;
}
arch/arm/plat-s5p/Kconfig
View file @ 50ee9339
......@@ -85,6 +85,11 @@ config S5P_DEV_CSIS1
help
Compile in platform device definitions for MIPI-CSIS channel 1
config S5P_DEV_USB_EHCI
bool
help
Compile in platform device definition for USB EHCI
config S5P_SETUP_MIPIPHY
bool
help
......
arch/arm/plat-s5p/Makefile
View file @ 50ee9339
......@@ -33,4 +33,5 @@ obj-$(CONFIG_S5P_DEV_FIMC3) += dev-fimc3.o
obj-$(CONFIG_S5P_DEV_ONENAND) += dev-onenand.o
obj-$(CONFIG_S5P_DEV_CSIS0) += dev-csis0.o
obj-$(CONFIG_S5P_DEV_CSIS1) += dev-csis1.o
obj-$(CONFIG_S5P_DEV_USB_EHCI) += dev-ehci.o
obj-$(CONFIG_S5P_SETUP_MIPIPHY) += setup-mipiphy.o
arch/arm/plat-s5p/dev-ehci.c 0 → 100644
View file @ 50ee9339
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/platform_device.h>
#include <mach/irqs.h>
#include <mach/map.h>
#include <plat/devs.h>
#include <plat/ehci.h>
#include <plat/usb-phy.h>
/* USB EHCI Host Controller registration */
static struct resource s5p_ehci_resource[] = {
[0] = {
.start = S5P_PA_EHCI,
.end = S5P_PA_EHCI + SZ_256 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_USB_HOST,
.end = IRQ_USB_HOST,
.flags = IORESOURCE_IRQ,
}
};
static u64 s5p_device_ehci_dmamask = 0xffffffffUL;
struct platform_device s5p_device_ehci = {
.name = "s5p-ehci",
.id = -1,
.num_resources = ARRAY_SIZE(s5p_ehci_resource),
.resource = s5p_ehci_resource,
.dev = {
.dma_mask = &s5p_device_ehci_dmamask,
.coherent_dma_mask = 0xffffffffUL
}
};
void __init s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd)
{
struct s5p_ehci_platdata *npd;
npd = s3c_set_platdata(pd, sizeof(struct s5p_ehci_platdata),
&s5p_device_ehci);
if (!npd->phy_init)
npd->phy_init = s5p_usb_phy_init;
if (!npd->phy_exit)
npd->phy_exit = s5p_usb_phy_exit;
}
arch/arm/plat-s5p/include/plat/ehci.h 0 → 100644
View file @ 50ee9339
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __PLAT_S5P_EHCI_H
#define __PLAT_S5P_EHCI_H
struct s5p_ehci_platdata {
int (*phy_init)(struct platform_device *pdev, int type);
int (*phy_exit)(struct platform_device *pdev, int type);
};
extern void s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd);
#endif /* __PLAT_S5P_EHCI_H */
arch/arm/plat-s5p/include/plat/map-s5p.h
View file @ 50ee9339
......@@ -39,7 +39,7 @@
#define S5P_VA_TWD S5P_VA_COREPERI(0x600)
#define S5P_VA_GIC_DIST S5P_VA_COREPERI(0x1000)
#define S3C_VA_USB_HSPHY S3C_ADDR(0x02900000)
#define S5P_VA_USB_HSPHY S3C_ADDR(0x02900000)
#define VA_VIC(x) (S3C_VA_IRQ + ((x) * 0x10000))
#define VA_VIC0 VA_VIC(0)
......
arch/arm/plat-s5p/include/plat/usb-phy.h 0 → 100644
View file @ 50ee9339
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __PLAT_S5P_USB_PHY_H
#define __PLAT_S5P_USB_PHY_H
enum s5p_usb_phy_type {
S5P_USB_PHY_DEVICE,
S5P_USB_PHY_HOST,
};
extern int s5p_usb_phy_init(struct platform_device *pdev, int type);
extern int s5p_usb_phy_exit(struct platform_device *pdev, int type);
#endif /* __PLAT_S5P_REGS_USB_PHY_H */
arch/arm/plat-samsung/include/plat/devs.h
View file @ 50ee9339
......@@ -142,6 +142,8 @@ extern struct platform_device s5p_device_fimc3;
extern struct platform_device s5p_device_mipi_csis0;
extern struct platform_device s5p_device_mipi_csis1;
extern struct platform_device s5p_device_ehci;
extern struct platform_device exynos4_device_sysmmu;
/* s3c2440 specific devices */
......
arch/mips/ath79/Kconfig
View file @ 50ee9339
......@@ -26,12 +26,17 @@ config ATH79_MACH_PB44
endmenu
config SOC_AR71XX
select USB_ARCH_HAS_EHCI
select USB_ARCH_HAS_OHCI
def_bool n
config SOC_AR724X
select USB_ARCH_HAS_EHCI
select USB_ARCH_HAS_OHCI
def_bool n
config SOC_AR913X
select USB_ARCH_HAS_EHCI
def_bool n
config ATH79_DEV_AR913X_WMAC
......
drivers/Makefile
View file @ 50ee9339
......@@ -64,11 +64,10 @@ obj-$(CONFIG_ATA_OVER_ETH) += block/aoe/
obj-$(CONFIG_PARIDE) += block/paride/
obj-$(CONFIG_TC) += tc/
obj-$(CONFIG_UWB) += uwb/
obj-$(CONFIG_USB_OTG_UTILS) += usb/otg/
obj-$(CONFIG_USB_OTG_UTILS) += usb/
obj-$(CONFIG_USB) += usb/
obj-$(CONFIG_USB_MUSB_HDRC) += usb/musb/
obj-$(CONFIG_PCI) += usb/
obj-$(CONFIG_USB_GADGET) += usb/gadget/
obj-$(CONFIG_USB_GADGET) += usb/
obj-$(CONFIG_SERIO) += input/serio/
obj-$(CONFIG_GAMEPORT) += input/gameport/
obj-$(CONFIG_INPUT) += input/
......
drivers/usb/Kconfig
View file @ 50ee9339
......@@ -65,6 +65,7 @@ config USB_ARCH_HAS_EHCI
default y if ARCH_CNS3XXX
default y if ARCH_VT8500
default y if PLAT_SPEAR
default y if PLAT_S5P
default y if ARCH_MSM
default y if MICROBLAZE
default PCI
......@@ -116,6 +117,8 @@ source "drivers/usb/host/Kconfig"
source "drivers/usb/musb/Kconfig"
source "drivers/usb/renesas_usbhs/Kconfig"
source "drivers/usb/class/Kconfig"
source "drivers/usb/storage/Kconfig"
......
drivers/usb/Makefile
View file @ 50ee9339
......@@ -45,3 +45,8 @@ obj-$(CONFIG_EARLY_PRINTK_DBGP) += early/
obj-$(CONFIG_USB_ATM) += atm/
obj-$(CONFIG_USB_SPEEDTOUCH) += atm/
obj-$(CONFIG_USB_MUSB_HDRC) += musb/
obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs/
obj-$(CONFIG_USB_OTG_UTILS) += otg/
obj-$(CONFIG_USB_GADGET) += gadget/
drivers/usb/class/cdc-acm.c
View file @ 50ee9339
......@@ -7,35 +7,12 @@
* Copyright (c) 2000 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2004 Oliver Neukum <oliver@neukum.name>
* Copyright (c) 2005 David Kubicek <dave@awk.cz>
* Copyright (c) 2011 Johan Hovold <jhovold@gmail.com>
*
* USB Abstract Control Model driver for USB modems and ISDN adapters
*
* Sponsored by SuSE
*
* ChangeLog:
* v0.9 - thorough cleaning, URBification, almost a rewrite
* v0.10 - some more cleanups
* v0.11 - fixed flow control, read error doesn't stop reads
* v0.12 - added TIOCM ioctls, added break handling, made struct acm
* kmalloced
* v0.13 - added termios, added hangup
* v0.14 - sized down struct acm
* v0.15 - fixed flow control again - characters could be lost
* v0.16 - added code for modems with swapped data and control interfaces
* v0.17 - added new style probing
* v0.18 - fixed new style probing for devices with more configurations
* v0.19 - fixed CLOCAL handling (thanks to Richard Shih-Ping Chan)
* v0.20 - switched to probing on interface (rather than device) class
* v0.21 - revert to probing on device for devices with multiple configs
* v0.22 - probe only the control interface. if usbcore doesn't choose the
* config we want, sysadmin changes bConfigurationValue in sysfs.
* v0.23 - use softirq for rx processing, as needed by tty layer
* v0.24 - change probe method to evaluate CDC union descriptor
* v0.25 - downstream tasks paralelized to maximize throughput
* v0.26 - multiple write urbs, writesize increased
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
......@@ -74,13 +51,7 @@
#include "cdc-acm.h"
#define ACM_CLOSE_TIMEOUT 15 /* seconds to let writes drain */
/*
* Version Information
*/
#define DRIVER_VERSION "v0.26"
#define DRIVER_AUTHOR "Armin Fuerst, Pavel Machek, Johannes Erdfelt, Vojtech Pavlik, David Kubicek"
#define DRIVER_AUTHOR "Armin Fuerst, Pavel Machek, Johannes Erdfelt, Vojtech Pavlik, David Kubicek, Johan Hovold"
#define DRIVER_DESC "USB Abstract Control Model driver for USB modems and ISDN adapters"
static struct usb_driver acm_driver;
......@@ -94,12 +65,6 @@ static DEFINE_MUTEX(open_mutex);
static const struct tty_port_operations acm_port_ops = {
};
#ifdef VERBOSE_DEBUG
#define verbose 1
#else
#define verbose 0
#endif
/*
* Functions for ACM control messages.
*/
......@@ -111,8 +76,9 @@ static int acm_ctrl_msg(struct acm *acm, int request, int value,
request, USB_RT_ACM, value,
acm->control->altsetting[0].desc.bInterfaceNumber,
buf, len, 5000);
dbg("acm_control_msg: rq: 0x%02x val: %#x len: %#x result: %d",
request, value, len, retval);
dev_dbg(&acm->control->dev,
"%s - rq 0x%02x, val %#x, len %#x, result %d\n",
__func__, request, value, len, retval);
return retval < 0 ? retval : 0;
}
......@@ -192,7 +158,9 @@ static int acm_start_wb(struct acm *acm, struct acm_wb *wb)
rc = usb_submit_urb(wb->urb, GFP_ATOMIC);
if (rc < 0) {
dbg("usb_submit_urb(write bulk) failed: %d", rc);
dev_err(&acm->data->dev,
"%s - usb_submit_urb(write bulk) failed: %d\n",
__func__, rc);
acm_write_done(acm, wb);
}
return rc;
......@@ -211,7 +179,8 @@ static int acm_write_start(struct acm *acm, int wbn)
return -ENODEV;
}
dbg("%s susp_count: %d", __func__, acm->susp_count);
dev_vdbg(&acm->data->dev, "%s - susp_count %d\n", __func__,
acm->susp_count);
usb_autopm_get_interface_async(acm->control);
if (acm->susp_count) {
if (!acm->delayed_wb)
......@@ -287,10 +256,14 @@ static void acm_ctrl_irq(struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d", __func__, status);
dev_dbg(&acm->control->dev,
"%s - urb shutting down with status: %d\n",
__func__, status);
return;
default:
dbg("%s - nonzero urb status received: %d", __func__, status);
dev_dbg(&acm->control->dev,
"%s - nonzero urb status received: %d\n",
__func__, status);
goto exit;
}
......@@ -302,8 +275,8 @@ static void acm_ctrl_irq(struct urb *urb)
data = (unsigned char *)(dr + 1);
switch (dr->bNotificationType) {
case USB_CDC_NOTIFY_NETWORK_CONNECTION:
dbg("%s network", dr->wValue ?
"connected to" : "disconnected from");
dev_dbg(&acm->control->dev, "%s - network connection: %d\n",
__func__, dr->wValue);
break;
case USB_CDC_NOTIFY_SERIAL_STATE:
......@@ -313,7 +286,8 @@ static void acm_ctrl_irq(struct urb *urb)
if (tty) {
if (!acm->clocal &&
(acm->ctrlin & ~newctrl & ACM_CTRL_DCD)) {
dbg("calling hangup");
dev_dbg(&acm->control->dev,
"%s - calling hangup\n", __func__);
tty_hangup(tty);
}
tty_kref_put(tty);
......@@ -321,7 +295,10 @@ static void acm_ctrl_irq(struct urb *urb)
acm->ctrlin = newctrl;
dbg("input control lines: dcd%c dsr%c break%c ring%c framing%c parity%c overrun%c",
dev_dbg(&acm->control->dev,
"%s - input control lines: dcd%c dsr%c break%c "
"ring%c framing%c parity%c overrun%c\n",
__func__,
acm->ctrlin & ACM_CTRL_DCD ? '+' : '-',
acm->ctrlin & ACM_CTRL_DSR ? '+' : '-',
acm->ctrlin & ACM_CTRL_BRK ? '+' : '-',
......@@ -332,7 +309,10 @@ static void acm_ctrl_irq(struct urb *urb)
break;
default:
dbg("unknown notification %d received: index %d len %d data0 %d data1 %d",
dev_dbg(&acm->control->dev,
"%s - unknown notification %d received: index %d "
"len %d data0 %d data1 %d\n",
__func__,
dr->bNotificationType, dr->wIndex,
dr->wLength, data[0], data[1]);
break;
......@@ -340,166 +320,96 @@ static void acm_ctrl_irq(struct urb *urb)
exit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
dev_err(&urb->dev->dev, "%s - usb_submit_urb failed with "
"result %d", __func__, retval);
dev_err(&acm->control->dev, "%s - usb_submit_urb failed: %d\n",
__func__, retval);
}
/* data interface returns incoming bytes, or we got unthrottled */
static void acm_read_bulk(struct urb *urb)
static int acm_submit_read_urb(struct acm *acm, int index, gfp_t mem_flags)
{
struct acm_rb *buf;
struct acm_ru *rcv = urb->context;
struct acm *acm = rcv->instance;
int status = urb->status;
int res;
dbg("Entering acm_read_bulk with status %d", status);
if (!test_and_clear_bit(index, &acm->read_urbs_free))
return 0;
if (!ACM_READY(acm)) {
dev_dbg(&acm->data->dev, "Aborting, acm not ready");
return;
dev_vdbg(&acm->data->dev, "%s - urb %d\n", __func__, index);
res = usb_submit_urb(acm->read_urbs[index], mem_flags);
if (res) {
if (res != -EPERM) {
dev_err(&acm->data->dev,
"%s - usb_submit_urb failed: %d\n",
__func__, res);
}
set_bit(index, &acm->read_urbs_free);
return res;
}
usb_mark_last_busy(acm->dev);
if (status)
dev_dbg(&acm->data->dev, "bulk rx status %d\n", status);
return 0;
}
buf = rcv->buffer;
buf->size = urb->actual_length;
static int acm_submit_read_urbs(struct acm *acm, gfp_t mem_flags)
{
int res;
int i;
if (likely(status == 0)) {
spin_lock(&acm->read_lock);
acm->processing++;
list_add_tail(&rcv->list, &acm->spare_read_urbs);
list_add_tail(&buf->list, &acm->filled_read_bufs);
spin_unlock(&acm->read_lock);
} else {
/* we drop the buffer due to an error */
spin_lock(&acm->read_lock);
list_add_tail(&rcv->list, &acm->spare_read_urbs);
list_add(&buf->list, &acm->spare_read_bufs);
spin_unlock(&acm->read_lock);
/* nevertheless the tasklet must be kicked unconditionally
so the queue cannot dry up */
}
if (likely(!acm->susp_count))
tasklet_schedule(&acm->urb_task);
for (i = 0; i < acm->rx_buflimit; ++i) {
res = acm_submit_read_urb(acm, i, mem_flags);
if (res)
return res;
}
return 0;
}
static void acm_rx_tasklet(unsigned long _acm)
static void acm_process_read_urb(struct acm *acm, struct urb *urb)
{
struct acm *acm = (void *)_acm;
struct acm_rb *buf;
struct tty_struct *tty;
struct acm_ru *rcv;
unsigned long flags;
unsigned char throttled;
dbg("Entering acm_rx_tasklet");
if (!ACM_READY(acm)) {
dbg("acm_rx_tasklet: ACM not ready");
return;
}
spin_lock_irqsave(&acm->throttle_lock, flags);
throttled = acm->throttle;
spin_unlock_irqrestore(&acm->throttle_lock, flags);
if (throttled) {
dbg("acm_rx_tasklet: throttled");
if (!urb->actual_length)
return;
}
tty = tty_port_tty_get(&acm->port);
if (!tty)
return;
next_buffer:
spin_lock_irqsave(&acm->read_lock, flags);
if (list_empty(&acm->filled_read_bufs)) {
spin_unlock_irqrestore(&acm->read_lock, flags);
goto urbs;
}
buf = list_entry(acm->filled_read_bufs.next,
struct acm_rb, list);
list_del(&buf->list);
spin_unlock_irqrestore(&acm->read_lock, flags);
dbg("acm_rx_tasklet: procesing buf 0x%p, size = %d", buf, buf->size);
if (tty) {
spin_lock_irqsave(&acm->throttle_lock, flags);
throttled = acm->throttle;
spin_unlock_irqrestore(&acm->throttle_lock, flags);
if (!throttled) {
tty_insert_flip_string(tty, buf->base, buf->size);
tty_insert_flip_string(tty, urb->transfer_buffer, urb->actual_length);
tty_flip_buffer_push(tty);
} else {
tty_kref_put(tty);
dbg("Throttling noticed");
spin_lock_irqsave(&acm->read_lock, flags);
list_add(&buf->list, &acm->filled_read_bufs);
spin_unlock_irqrestore(&acm->read_lock, flags);
return;
}
}
}
spin_lock_irqsave(&acm->read_lock, flags);
list_add(&buf->list, &acm->spare_read_bufs);
spin_unlock_irqrestore(&acm->read_lock, flags);
goto next_buffer;
static void acm_read_bulk_callback(struct urb *urb)
{
struct acm_rb *rb = urb->context;
struct acm *acm = rb->instance;
unsigned long flags;
urbs:
tty_kref_put(tty);
dev_vdbg(&acm->data->dev, "%s - urb %d, len %d\n", __func__,
rb->index, urb->actual_length);
set_bit(rb->index, &acm->read_urbs_free);
while (!list_empty(&acm->spare_read_bufs)) {
spin_lock_irqsave(&acm->read_lock, flags);
if (list_empty(&acm->spare_read_urbs)) {
acm->processing = 0;
spin_unlock_irqrestore(&acm->read_lock, flags);
if (!acm->dev) {
dev_dbg(&acm->data->dev, "%s - disconnected\n", __func__);
return;
}
rcv = list_entry(acm->spare_read_urbs.next,
struct acm_ru, list);
list_del(&rcv->list);
spin_unlock_irqrestore(&acm->read_lock, flags);
buf = list_entry(acm->spare_read_bufs.next,
struct acm_rb, list);
list_del(&buf->list);
rcv->buffer = buf;
usb_mark_last_busy(acm->dev);
if (acm->is_int_ep)
usb_fill_int_urb(rcv->urb, acm->dev,
acm->rx_endpoint,
buf->base,
acm->readsize,
acm_read_bulk, rcv, acm->bInterval);
else
usb_fill_bulk_urb(rcv->urb, acm->dev,
acm->rx_endpoint,
buf->base,
acm->readsize,
acm_read_bulk, rcv);
rcv->urb->transfer_dma = buf->dma;
rcv->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
if (urb->status) {
dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n",
__func__, urb->status);
return;
}
acm_process_read_urb(acm, urb);
/* This shouldn't kill the driver as unsuccessful URBs are
returned to the free-urbs-pool and resubmited ASAP */
/* throttle device if requested by tty */
spin_lock_irqsave(&acm->read_lock, flags);
if (acm->susp_count ||
usb_submit_urb(rcv->urb, GFP_ATOMIC) < 0) {
list_add(&buf->list, &acm->spare_read_bufs);
list_add(&rcv->list, &acm->spare_read_urbs);
acm->processing = 0;
acm->throttled = acm->throttle_req;
if (!acm->throttled && !acm->susp_count) {
spin_unlock_irqrestore(&acm->read_lock, flags);
return;
acm_submit_read_urb(acm, rb->index, GFP_ATOMIC);
} else {
spin_unlock_irqrestore(&acm->read_lock, flags);
dbg("acm_rx_tasklet: sending urb 0x%p, rcv 0x%p, buf 0x%p", rcv->urb, rcv, buf);
}
}
spin_lock_irqsave(&acm->read_lock, flags);
acm->processing = 0;
spin_unlock_irqrestore(&acm->read_lock, flags);
}
/* data interface wrote those outgoing bytes */
......@@ -509,9 +419,9 @@ static void acm_write_bulk(struct urb *urb)
struct acm *acm = wb->instance;
unsigned long flags;
if (verbose || urb->status
|| (urb->actual_length != urb->transfer_buffer_length))
dev_dbg(&acm->data->dev, "tx %d/%d bytes -- > %d\n",
if (urb->status || (urb->actual_length != urb->transfer_buffer_length))
dev_vdbg(&acm->data->dev, "%s - len %d/%d, status %d\n",
__func__,
urb->actual_length,
urb->transfer_buffer_length,
urb->status);
......@@ -521,8 +431,6 @@ static void acm_write_bulk(struct urb *urb)
spin_unlock_irqrestore(&acm->write_lock, flags);
if (ACM_READY(acm))
schedule_work(&acm->work);
else
wake_up_interruptible(&acm->drain_wait);
}
static void acm_softint(struct work_struct *work)
......@@ -530,7 +438,8 @@ static void acm_softint(struct work_struct *work)
struct acm *acm = container_of(work, struct acm, work);
struct tty_struct *tty;
dev_vdbg(&acm->data->dev, "tx work\n");
dev_vdbg(&acm->data->dev, "%s\n", __func__);
if (!ACM_READY(acm))
return;
tty = tty_port_tty_get(&acm->port);
......@@ -548,8 +457,6 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
{
struct acm *acm;
int rv = -ENODEV;
int i;
dbg("Entering acm_tty_open.");
mutex_lock(&open_mutex);
......@@ -559,6 +466,8 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
else
rv = 0;
dev_dbg(&acm->control->dev, "%s\n", __func__);
set_bit(TTY_NO_WRITE_SPLIT, &tty->flags);
tty->driver_data = acm;
......@@ -578,38 +487,28 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
acm->ctrlurb->dev = acm->dev;
if (usb_submit_urb(acm->ctrlurb, GFP_KERNEL)) {
dbg("usb_submit_urb(ctrl irq) failed");
dev_err(&acm->control->dev,
"%s - usb_submit_urb(ctrl irq) failed\n", __func__);
goto bail_out;
}
if (0 > acm_set_control(acm, acm->ctrlout = ACM_CTRL_DTR | ACM_CTRL_RTS) &&
(acm->ctrl_caps & USB_CDC_CAP_LINE))
goto full_bailout;
goto bail_out;
usb_autopm_put_interface(acm->control);
INIT_LIST_HEAD(&acm->spare_read_urbs);
INIT_LIST_HEAD(&acm->spare_read_bufs);
INIT_LIST_HEAD(&acm->filled_read_bufs);
for (i = 0; i < acm->rx_buflimit; i++)
list_add(&(acm->ru[i].list), &acm->spare_read_urbs);
for (i = 0; i < acm->rx_buflimit; i++)
list_add(&(acm->rb[i].list), &acm->spare_read_bufs);
acm->throttle = 0;
if (acm_submit_read_urbs(acm, GFP_KERNEL))
goto bail_out;
set_bit(ASYNCB_INITIALIZED, &acm->port.flags);
rv = tty_port_block_til_ready(&acm->port, tty, filp);
tasklet_schedule(&acm->urb_task);
mutex_unlock(&acm->mutex);
out:
mutex_unlock(&open_mutex);
return rv;
full_bailout:
usb_kill_urb(acm->ctrlurb);
bail_out:
acm->port.count--;
mutex_unlock(&acm->mutex);
......@@ -622,26 +521,24 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
static void acm_tty_unregister(struct acm *acm)
{
int i, nr;
int i;
nr = acm->rx_buflimit;
tty_unregister_device(acm_tty_driver, acm->minor);
usb_put_intf(acm->control);
acm_table[acm->minor] = NULL;
usb_free_urb(acm->ctrlurb);
for (i = 0; i < ACM_NW; i++)
usb_free_urb(acm->wb[i].urb);
for (i = 0; i < nr; i++)
usb_free_urb(acm->ru[i].urb);
for (i = 0; i < acm->rx_buflimit; i++)
usb_free_urb(acm->read_urbs[i]);
kfree(acm->country_codes);
kfree(acm);
}
static int acm_tty_chars_in_buffer(struct tty_struct *tty);
static void acm_port_down(struct acm *acm)
{
int i, nr = acm->rx_buflimit;
int i;
mutex_lock(&open_mutex);
if (acm->dev) {
usb_autopm_get_interface(acm->control);
......@@ -649,10 +546,8 @@ static void acm_port_down(struct acm *acm)
usb_kill_urb(acm->ctrlurb);
for (i = 0; i < ACM_NW; i++)
usb_kill_urb(acm->wb[i].urb);
tasklet_disable(&acm->urb_task);
for (i = 0; i < nr; i++)
usb_kill_urb(acm->ru[i].urb);
tasklet_enable(&acm->urb_task);
for (i = 0; i < acm->rx_buflimit; i++)
usb_kill_urb(acm->read_urbs[i]);
acm->control->needs_remote_wakeup = 0;
usb_autopm_put_interface(acm->control);
}
......@@ -698,13 +593,13 @@ static int acm_tty_write(struct tty_struct *tty,
int wbn;
struct acm_wb *wb;
dbg("Entering acm_tty_write to write %d bytes,", count);
if (!ACM_READY(acm))
return -EINVAL;
if (!count)
return 0;
dev_vdbg(&acm->data->dev, "%s - count %d\n", __func__, count);
spin_lock_irqsave(&acm->write_lock, flags);
wbn = acm_wb_alloc(acm);
if (wbn < 0) {
......@@ -714,7 +609,7 @@ static int acm_tty_write(struct tty_struct *tty,
wb = &acm->wb[wbn];
count = (count > acm->writesize) ? acm->writesize : count;
dbg("Get %d bytes...", count);
dev_vdbg(&acm->data->dev, "%s - write %d\n", __func__, count);
memcpy(wb->buf, buf, count);
wb->len = count;
spin_unlock_irqrestore(&acm->write_lock, flags);
......@@ -751,22 +646,31 @@ static int acm_tty_chars_in_buffer(struct tty_struct *tty)
static void acm_tty_throttle(struct tty_struct *tty)
{
struct acm *acm = tty->driver_data;
if (!ACM_READY(acm))
return;
spin_lock_bh(&acm->throttle_lock);
acm->throttle = 1;
spin_unlock_bh(&acm->throttle_lock);
spin_lock_irq(&acm->read_lock);
acm->throttle_req = 1;
spin_unlock_irq(&acm->read_lock);
}
static void acm_tty_unthrottle(struct tty_struct *tty)
{
struct acm *acm = tty->driver_data;
unsigned int was_throttled;
if (!ACM_READY(acm))
return;
spin_lock_bh(&acm->throttle_lock);
acm->throttle = 0;
spin_unlock_bh(&acm->throttle_lock);
tasklet_schedule(&acm->urb_task);
spin_lock_irq(&acm->read_lock);
was_throttled = acm->throttled;
acm->throttled = 0;
acm->throttle_req = 0;
spin_unlock_irq(&acm->read_lock);
if (was_throttled)
acm_submit_read_urbs(acm, GFP_KERNEL);
}
static int acm_tty_break_ctl(struct tty_struct *tty, int state)
......@@ -777,7 +681,8 @@ static int acm_tty_break_ctl(struct tty_struct *tty, int state)
return -EINVAL;
retval = acm_send_break(acm, state ? 0xffff : 0);
if (retval < 0)
dbg("send break failed");
dev_dbg(&acm->control->dev, "%s - send break failed\n",
__func__);
return retval;
}
......@@ -872,7 +777,9 @@ static void acm_tty_set_termios(struct tty_struct *tty,
if (memcmp(&acm->line, &newline, sizeof newline)) {
memcpy(&acm->line, &newline, sizeof newline);
dbg("set line: %d %d %d %d", le32_to_cpu(newline.dwDTERate),
dev_dbg(&acm->control->dev, "%s - set line: %d %d %d %d\n",
__func__,
le32_to_cpu(newline.dwDTERate),
newline.bCharFormat, newline.bParityType,
newline.bDataBits);
acm_set_line(acm, &acm->line);
......@@ -897,11 +804,11 @@ static void acm_write_buffers_free(struct acm *acm)
static void acm_read_buffers_free(struct acm *acm)
{
struct usb_device *usb_dev = interface_to_usbdev(acm->control);
int i, n = acm->rx_buflimit;
int i;
for (i = 0; i < n; i++)
for (i = 0; i < acm->rx_buflimit; i++)
usb_free_coherent(usb_dev, acm->readsize,
acm->rb[i].base, acm->rb[i].dma);
acm->read_buffers[i].base, acm->read_buffers[i].dma);
}
/* Little helper: write buffers allocate */
......@@ -1133,7 +1040,7 @@ static int acm_probe(struct usb_interface *intf,
epwrite = t;
}
made_compressed_probe:
dbg("interfaces are valid");
dev_dbg(&intf->dev, "interfaces are valid\n");
for (minor = 0; minor < ACM_TTY_MINORS && acm_table[minor]; minor++);
if (minor == ACM_TTY_MINORS) {
......@@ -1143,7 +1050,7 @@ static int acm_probe(struct usb_interface *intf,
acm = kzalloc(sizeof(struct acm), GFP_KERNEL);
if (acm == NULL) {
dev_dbg(&intf->dev, "out of memory (acm kzalloc)\n");
dev_err(&intf->dev, "out of memory (acm kzalloc)\n");
goto alloc_fail;
}
......@@ -1162,11 +1069,7 @@ static int acm_probe(struct usb_interface *intf,
acm->ctrlsize = ctrlsize;
acm->readsize = readsize;
acm->rx_buflimit = num_rx_buf;
acm->urb_task.func = acm_rx_tasklet;
acm->urb_task.data = (unsigned long) acm;
INIT_WORK(&acm->work, acm_softint);
init_waitqueue_head(&acm->drain_wait);
spin_lock_init(&acm->throttle_lock);
spin_lock_init(&acm->write_lock);
spin_lock_init(&acm->read_lock);
mutex_init(&acm->mutex);
......@@ -1179,53 +1082,69 @@ static int acm_probe(struct usb_interface *intf,
buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma);
if (!buf) {
dev_dbg(&intf->dev, "out of memory (ctrl buffer alloc)\n");
dev_err(&intf->dev, "out of memory (ctrl buffer alloc)\n");
goto alloc_fail2;
}
acm->ctrl_buffer = buf;
if (acm_write_buffers_alloc(acm) < 0) {
dev_dbg(&intf->dev, "out of memory (write buffer alloc)\n");
dev_err(&intf->dev, "out of memory (write buffer alloc)\n");
goto alloc_fail4;
}
acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL);
if (!acm->ctrlurb) {
dev_dbg(&intf->dev, "out of memory (ctrlurb kmalloc)\n");
dev_err(&intf->dev, "out of memory (ctrlurb kmalloc)\n");
goto alloc_fail5;
}
for (i = 0; i < num_rx_buf; i++) {
struct acm_ru *rcv = &(acm->ru[i]);
struct acm_rb *rb = &(acm->read_buffers[i]);
struct urb *urb;
rcv->urb = usb_alloc_urb(0, GFP_KERNEL);
if (rcv->urb == NULL) {
dev_dbg(&intf->dev,
"out of memory (read urbs usb_alloc_urb)\n");
rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL,
&rb->dma);
if (!rb->base) {
dev_err(&intf->dev, "out of memory "
"(read bufs usb_alloc_coherent)\n");
goto alloc_fail6;
}
rb->index = i;
rb->instance = acm;
rcv->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
rcv->instance = acm;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb) {
dev_err(&intf->dev,
"out of memory (read urbs usb_alloc_urb)\n");
goto alloc_fail6;
}
for (i = 0; i < num_rx_buf; i++) {
struct acm_rb *rb = &(acm->rb[i]);
rb->base = usb_alloc_coherent(acm->dev, readsize,
GFP_KERNEL, &rb->dma);
if (!rb->base) {
dev_dbg(&intf->dev,
"out of memory (read bufs usb_alloc_coherent)\n");
goto alloc_fail7;
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
urb->transfer_dma = rb->dma;
if (acm->is_int_ep) {
usb_fill_int_urb(urb, acm->dev,
acm->rx_endpoint,
rb->base,
acm->readsize,
acm_read_bulk_callback, rb,
acm->bInterval);
} else {
usb_fill_bulk_urb(urb, acm->dev,
acm->rx_endpoint,
rb->base,
acm->readsize,
acm_read_bulk_callback, rb);
}
acm->read_urbs[i] = urb;
__set_bit(i, &acm->read_urbs_free);
}
for (i = 0; i < ACM_NW; i++) {
struct acm_wb *snd = &(acm->wb[i]);
snd->urb = usb_alloc_urb(0, GFP_KERNEL);
if (snd->urb == NULL) {
dev_dbg(&intf->dev,
"out of memory (write urbs usb_alloc_urb)");
goto alloc_fail8;
dev_err(&intf->dev,
"out of memory (write urbs usb_alloc_urb)\n");
goto alloc_fail7;
}
if (usb_endpoint_xfer_int(epwrite))
......@@ -1244,7 +1163,7 @@ static int acm_probe(struct usb_interface *intf,
i = device_create_file(&intf->dev, &dev_attr_bmCapabilities);
if (i < 0)
goto alloc_fail8;
goto alloc_fail7;
if (cfd) { /* export the country data */
acm->country_codes = kmalloc(cfd->bLength - 4, GFP_KERNEL);
......@@ -1296,14 +1215,13 @@ static int acm_probe(struct usb_interface *intf,
acm_table[minor] = acm;
return 0;
alloc_fail8:
alloc_fail7:
for (i = 0; i < ACM_NW; i++)
usb_free_urb(acm->wb[i].urb);
alloc_fail7:
acm_read_buffers_free(acm);
alloc_fail6:
for (i = 0; i < num_rx_buf; i++)
usb_free_urb(acm->ru[i].urb);
usb_free_urb(acm->read_urbs[i]);
acm_read_buffers_free(acm);
usb_free_urb(acm->ctrlurb);
alloc_fail5:
acm_write_buffers_free(acm);
......@@ -1318,17 +1236,14 @@ static int acm_probe(struct usb_interface *intf,
static void stop_data_traffic(struct acm *acm)
{
int i;
dbg("Entering stop_data_traffic");
tasklet_disable(&acm->urb_task);
dev_dbg(&acm->control->dev, "%s\n", __func__);
usb_kill_urb(acm->ctrlurb);
for (i = 0; i < ACM_NW; i++)
usb_kill_urb(acm->wb[i].urb);
for (i = 0; i < acm->rx_buflimit; i++)
usb_kill_urb(acm->ru[i].urb);
tasklet_enable(&acm->urb_task);
usb_kill_urb(acm->read_urbs[i]);
cancel_work_sync(&acm->work);
}
......@@ -1389,11 +1304,9 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
if (message.event & PM_EVENT_AUTO) {
int b;
spin_lock_irq(&acm->read_lock);
spin_lock(&acm->write_lock);
b = acm->processing + acm->transmitting;
spin_unlock(&acm->write_lock);
spin_unlock_irq(&acm->read_lock);
spin_lock_irq(&acm->write_lock);
b = acm->transmitting;
spin_unlock_irq(&acm->write_lock);
if (b)
return -EBUSY;
}
......@@ -1455,7 +1368,7 @@ static int acm_resume(struct usb_interface *intf)
if (rv < 0)
goto err_out;
tasklet_schedule(&acm->urb_task);
rv = acm_submit_read_urbs(acm, GFP_NOIO);
}
err_out:
......@@ -1716,8 +1629,7 @@ static int __init acm_init(void)
return retval;
}
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
DRIVER_DESC "\n");
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
return 0;
}
......
drivers/usb/class/cdc-acm.h
View file @ 50ee9339
......@@ -72,16 +72,10 @@ struct acm_wb {
};
struct acm_rb {
struct list_head list;
int size;
unsigned char *base;
dma_addr_t dma;
};
struct acm_ru {
struct list_head list;
struct acm_rb *buffer;
struct urb *urb;
int index;
struct acm *instance;
};
......@@ -97,35 +91,30 @@ struct acm {
unsigned int country_code_size; /* size of this buffer */
unsigned int country_rel_date; /* release date of version */
struct acm_wb wb[ACM_NW];
struct acm_ru ru[ACM_NR];
struct acm_rb rb[ACM_NR];
unsigned long read_urbs_free;
struct urb *read_urbs[ACM_NR];
struct acm_rb read_buffers[ACM_NR];
int rx_buflimit;
int rx_endpoint;
spinlock_t read_lock;
struct list_head spare_read_urbs;
struct list_head spare_read_bufs;
struct list_head filled_read_bufs;
int write_used; /* number of non-empty write buffers */
int processing;
int transmitting;
spinlock_t write_lock;
struct mutex mutex;
struct usb_cdc_line_coding line; /* bits, stop, parity */
struct work_struct work; /* work queue entry for line discipline waking up */
wait_queue_head_t drain_wait; /* close processing */
struct tasklet_struct urb_task; /* rx processing */
spinlock_t throttle_lock; /* synchronize throtteling and read callback */
unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */
unsigned int ctrlout; /* output control lines (DTR, RTS) */
unsigned int writesize; /* max packet size for the output bulk endpoint */
unsigned int readsize,ctrlsize; /* buffer sizes for freeing */
unsigned int minor; /* acm minor number */
unsigned char throttle; /* throttled by tty layer */
unsigned char clocal; /* termios CLOCAL */
unsigned int ctrl_caps; /* control capabilities from the class specific header */
unsigned int susp_count; /* number of suspended interfaces */
unsigned int combined_interfaces:1; /* control and data collapsed */
unsigned int is_int_ep:1; /* interrupt endpoints contrary to spec used */
unsigned int throttled:1; /* actually throttled */
unsigned int throttle_req:1; /* throttle requested */
u8 bInterval;
struct acm_wb *delayed_wb; /* write queued for a device about to be woken */
};
......
drivers/usb/core/devices.c
View file @ 50ee9339
......@@ -64,49 +64,49 @@
/* Define ALLOW_SERIAL_NUMBER if you want to see the serial number of devices */
#define ALLOW_SERIAL_NUMBER
static const char *format_topo =
static const char format_topo[] =
/* T: Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=dddd MxCh=dd */
"\nT: Bus=%2.2d Lev=%2.2d Prnt=%2.2d Port=%2.2d Cnt=%2.2d Dev#=%3d Spd=%-4s MxCh=%2d\n";
static const char *format_string_manufacturer =
static const char format_string_manufacturer[] =
/* S: Manufacturer=xxxx */
"S: Manufacturer=%.100s\n";
static const char *format_string_product =
static const char format_string_product[] =
/* S: Product=xxxx */
"S: Product=%.100s\n";
#ifdef ALLOW_SERIAL_NUMBER
static const char *format_string_serialnumber =
static const char format_string_serialnumber[] =
/* S: SerialNumber=xxxx */
"S: SerialNumber=%.100s\n";
#endif
static const char *format_bandwidth =
static const char format_bandwidth[] =
/* B: Alloc=ddd/ddd us (xx%), #Int=ddd, #Iso=ddd */
"B: Alloc=%3d/%3d us (%2d%%), #Int=%3d, #Iso=%3d\n";
static const char *format_device1 =
static const char format_device1[] =
/* D: Ver=xx.xx Cls=xx(sssss) Sub=xx Prot=xx MxPS=dd #Cfgs=dd */
"D: Ver=%2x.%02x Cls=%02x(%-5s) Sub=%02x Prot=%02x MxPS=%2d #Cfgs=%3d\n";
static const char *format_device2 =
static const char format_device2[] =
/* P: Vendor=xxxx ProdID=xxxx Rev=xx.xx */
"P: Vendor=%04x ProdID=%04x Rev=%2x.%02x\n";
static const char *format_config =
static const char format_config[] =
/* C: #Ifs=dd Cfg#=dd Atr=xx MPwr=dddmA */
"C:%c #Ifs=%2d Cfg#=%2d Atr=%02x MxPwr=%3dmA\n";
static const char *format_iad =
static const char format_iad[] =
/* A: FirstIf#=dd IfCount=dd Cls=xx(sssss) Sub=xx Prot=xx */
"A: FirstIf#=%2d IfCount=%2d Cls=%02x(%-5s) Sub=%02x Prot=%02x\n";
static const char *format_iface =
static const char format_iface[] =
/* I: If#=dd Alt=dd #EPs=dd Cls=xx(sssss) Sub=xx Prot=xx Driver=xxxx*/
"I:%c If#=%2d Alt=%2d #EPs=%2d Cls=%02x(%-5s) Sub=%02x Prot=%02x Driver=%s\n";
static const char *format_endpt =
static const char format_endpt[] =
/* E: Ad=xx(s) Atr=xx(ssss) MxPS=dddd Ivl=D?s */
"E: Ad=%02x(%c) Atr=%02x(%-4s) MxPS=%4d Ivl=%d%cs\n";
......
drivers/usb/core/file.c
View file @ 50ee9339
......@@ -236,13 +236,6 @@ EXPORT_SYMBOL_GPL(usb_register_dev);
void usb_deregister_dev(struct usb_interface *intf,
struct usb_class_driver *class_driver)
{
int minor_base = class_driver->minor_base;
char name[20];
#ifdef CONFIG_USB_DYNAMIC_MINORS
minor_base = 0;
#endif
if (intf->minor == -1)
return;
......@@ -252,7 +245,6 @@ void usb_deregister_dev(struct usb_interface *intf,
usb_minors[intf->minor] = NULL;
up_write(&minor_rwsem);
snprintf(name, sizeof(name), class_driver->name, intf->minor - minor_base);
device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));
intf->usb_dev = NULL;
intf->minor = -1;
......
drivers/usb/gadget/Kconfig
View file @ 50ee9339
......@@ -260,6 +260,24 @@ config USB_R8A66597
default USB_GADGET
select USB_GADGET_SELECTED
config USB_GADGET_RENESAS_USBHS
boolean "Renesas USBHS"
depends on USB_RENESAS_USBHS
select USB_GADGET_DUALSPEED
help
Renesas USBHS is a discrete USB host and peripheral controller
chip that supports both full and high speed USB 2.0 data transfers.
platform is able to configure endpoint (pipe) style
Say "y" to enable the gadget specific portion of the USBHS driver.
config USB_RENESAS_USBHS_UDC
tristate
depends on USB_GADGET_RENESAS_USBHS
default USB_GADGET
select USB_GADGET_SELECTED
config USB_GADGET_PXA27X
boolean "PXA 27x"
depends on ARCH_PXA && (PXA27x || PXA3xx)
......
drivers/usb/gadget/f_mass_storage.c
View file @ 50ee9339
......@@ -613,6 +613,11 @@ static int fsg_setup(struct usb_function *f,
if (!fsg_is_set(fsg->common))
return -EOPNOTSUPP;
++fsg->common->ep0_req_tag; /* Record arrival of a new request */
req->context = NULL;
req->length = 0;
dump_msg(fsg, "ep0-setup", (u8 *) ctrl, sizeof(*ctrl));
switch (ctrl->bRequest) {
case USB_BULK_RESET_REQUEST:
......@@ -1584,37 +1589,6 @@ static int wedge_bulk_in_endpoint(struct fsg_dev *fsg)
return rc;
}
static int pad_with_zeros(struct fsg_dev *fsg)
{
struct fsg_buffhd *bh = fsg->common->next_buffhd_to_fill;
u32 nkeep = bh->inreq->length;
u32 nsend;
int rc;
bh->state = BUF_STATE_EMPTY; /* For the first iteration */
fsg->common->usb_amount_left = nkeep + fsg->common->residue;
while (fsg->common->usb_amount_left > 0) {
/* Wait for the next buffer to be free */
while (bh->state != BUF_STATE_EMPTY) {
rc = sleep_thread(fsg->common);
if (rc)
return rc;
}
nsend = min(fsg->common->usb_amount_left, FSG_BUFLEN);
memset(bh->buf + nkeep, 0, nsend - nkeep);
bh->inreq->length = nsend;
bh->inreq->zero = 0;
start_transfer(fsg, fsg->bulk_in, bh->inreq,
&bh->inreq_busy, &bh->state);
bh = fsg->common->next_buffhd_to_fill = bh->next;
fsg->common->usb_amount_left -= nsend;
nkeep = 0;
}
return 0;
}
static int throw_away_data(struct fsg_common *common)
{
struct fsg_buffhd *bh;
......@@ -1702,6 +1676,10 @@ static int finish_reply(struct fsg_common *common)
if (common->data_size == 0) {
/* Nothing to send */
/* Don't know what to do if common->fsg is NULL */
} else if (!fsg_is_set(common)) {
rc = -EIO;
/* If there's no residue, simply send the last buffer */
} else if (common->residue == 0) {
bh->inreq->zero = 0;
......@@ -1710,24 +1688,19 @@ static int finish_reply(struct fsg_common *common)
common->next_buffhd_to_fill = bh->next;
/*
* For Bulk-only, if we're allowed to stall then send the
* short packet and halt the bulk-in endpoint. If we can't
* stall, pad out the remaining data with 0's.
* For Bulk-only, mark the end of the data with a short
* packet. If we are allowed to stall, halt the bulk-in
* endpoint. (Note: This violates the Bulk-Only Transport
* specification, which requires us to pad the data if we
* don't halt the endpoint. Presumably nobody will mind.)
*/
} else if (common->can_stall) {
} else {
bh->inreq->zero = 1;
if (!start_in_transfer(common, bh))
/* Don't know what to do if
* common->fsg is NULL */
rc = -EIO;
common->next_buffhd_to_fill = bh->next;
if (common->fsg)
if (common->can_stall)
rc = halt_bulk_in_endpoint(common->fsg);
} else if (fsg_is_set(common)) {
rc = pad_with_zeros(common->fsg);
} else {
/* Don't know what to do if common->fsg is NULL */
rc = -EIO;
}
break;
......@@ -2800,6 +2773,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun, ++lcfg) {
curlun->cdrom = !!lcfg->cdrom;
curlun->ro = lcfg->cdrom || lcfg->ro;
curlun->initially_ro = curlun->ro;
curlun->removable = lcfg->removable;
curlun->dev.release = fsg_lun_release;
curlun->dev.parent = &gadget->dev;
......
drivers/usb/gadget/file_storage.c
View file @ 50ee9339
......@@ -1947,37 +1947,6 @@ static int wedge_bulk_in_endpoint(struct fsg_dev *fsg)
return rc;
}
static int pad_with_zeros(struct fsg_dev *fsg)
{
struct fsg_buffhd *bh = fsg->next_buffhd_to_fill;
u32 nkeep = bh->inreq->length;
u32 nsend;
int rc;
bh->state = BUF_STATE_EMPTY; // For the first iteration
fsg->usb_amount_left = nkeep + fsg->residue;
while (fsg->usb_amount_left > 0) {
/* Wait for the next buffer to be free */
while (bh->state != BUF_STATE_EMPTY) {
rc = sleep_thread(fsg);
if (rc)
return rc;
}
nsend = min(fsg->usb_amount_left, (u32) mod_data.buflen);
memset(bh->buf + nkeep, 0, nsend - nkeep);
bh->inreq->length = nsend;
bh->inreq->zero = 0;
start_transfer(fsg, fsg->bulk_in, bh->inreq,
&bh->inreq_busy, &bh->state);
bh = fsg->next_buffhd_to_fill = bh->next;
fsg->usb_amount_left -= nsend;
nkeep = 0;
}
return 0;
}
static int throw_away_data(struct fsg_dev *fsg)
{
struct fsg_buffhd *bh;
......@@ -2082,18 +2051,20 @@ static int finish_reply(struct fsg_dev *fsg)
}
}
/* For Bulk-only, if we're allowed to stall then send the
* short packet and halt the bulk-in endpoint. If we can't
* stall, pad out the remaining data with 0's. */
/*
* For Bulk-only, mark the end of the data with a short
* packet. If we are allowed to stall, halt the bulk-in
* endpoint. (Note: This violates the Bulk-Only Transport
* specification, which requires us to pad the data if we
* don't halt the endpoint. Presumably nobody will mind.)
*/
else {
if (mod_data.can_stall) {
bh->inreq->zero = 1;
start_transfer(fsg, fsg->bulk_in, bh->inreq,
&bh->inreq_busy, &bh->state);
fsg->next_buffhd_to_fill = bh->next;
if (mod_data.can_stall)
rc = halt_bulk_in_endpoint(fsg);
} else
rc = pad_with_zeros(fsg);
}
break;
......
drivers/usb/gadget/fsl_qe_udc.h
View file @ 50ee9339
......@@ -207,7 +207,7 @@ struct qe_frame{
/* Frame status field */
/* Receive side */
#define FRAME_OK 0x00000000 /* Frame tranmitted or received OK */
#define FRAME_OK 0x00000000 /* Frame transmitted or received OK */
#define FRAME_ERROR 0x80000000 /* Error occurred on frame */
#define START_FRAME_LOST 0x40000000 /* START_FRAME_LOST */
#define END_FRAME_LOST 0x20000000 /* END_FRAME_LOST */
......
drivers/usb/gadget/gadget_chips.h
View file @ 50ee9339
......@@ -148,6 +148,12 @@
#define gadget_is_ci13xxx_msm(g) 0
#endif
#ifdef CONFIG_USB_GADGET_RENESAS_USBHS
#define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name))
#else
#define gadget_is_renesas_usbhs(g) 0
#endif
/**
* usb_gadget_controller_number - support bcdDevice id convention
* @gadget: the controller being driven
......@@ -207,6 +213,9 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
return 0x27;
else if (gadget_is_ci13xxx_msm(gadget))
return 0x28;
else if (gadget_is_renesas_usbhs(gadget))
return 0x29;
return -ENOENT;
}
......
drivers/usb/gadget/storage_common.c
View file @ 50ee9339
......@@ -711,10 +711,11 @@ static ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
ssize_t rc = count;
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
struct rw_semaphore *filesem = dev_get_drvdata(dev);
unsigned long ro;
unsigned ro;
if (strict_strtoul(buf, 2, &ro))
return -EINVAL;
rc = kstrtouint(buf, 2, &ro);
if (rc)
return rc;
/*
* Allow the write-enable status to change only while the
......@@ -738,10 +739,12 @@ static ssize_t fsg_store_nofua(struct device *dev,
const char *buf, size_t count)
{
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
unsigned long nofua;
unsigned nofua;
int ret;
if (strict_strtoul(buf, 2, &nofua))
return -EINVAL;
ret = kstrtouint(buf, 2, &nofua);
if (ret)
return ret;
/* Sync data when switching from async mode to sync */
if (!nofua && curlun->nofua)
......
drivers/usb/host/Kconfig
View file @ 50ee9339
......@@ -188,6 +188,12 @@ config USB_EHCI_SH
Enables support for the on-chip EHCI controller on the SuperH.
If you use the PCI EHCI controller, this option is not necessary.
config USB_EHCI_S5P
boolean "S5P EHCI support"
depends on USB_EHCI_HCD && PLAT_S5P
help
Enable support for the S5P SOC's on-chip EHCI controller.
config USB_W90X900_EHCI
bool "W90X900(W90P910) EHCI support"
depends on USB_EHCI_HCD && ARCH_W90X900
......@@ -202,6 +208,15 @@ config USB_CNS3XXX_EHCI
It is needed for high-speed (480Mbit/sec) USB 2.0 device
support.
config USB_EHCI_ATH79
bool "EHCI support for AR7XXX/AR9XXX SoCs"
depends on USB_EHCI_HCD && (SOC_AR71XX || SOC_AR724X || SOC_AR913X)
select USB_EHCI_ROOT_HUB_TT
default y
---help---
Enables support for the built-in EHCI controller present
on the Atheros AR7XXX/AR9XXX SoCs.
config USB_OXU210HP_HCD
tristate "OXU210HP HCD support"
depends on USB
......@@ -287,6 +302,14 @@ config USB_OHCI_HCD_OMAP3
Enables support for the on-chip OHCI controller on
OMAP3 and later chips.
config USB_OHCI_ATH79
bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs"
depends on USB_OHCI_HCD && (SOC_AR71XX || SOC_AR724X)
default y
help
Enables support for the built-in OHCI controller present on the
Atheros AR71XX/AR7240 SoCs.
config USB_OHCI_HCD_PPC_SOC
bool "OHCI support for on-chip PPC USB controller"
depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx)
......@@ -444,6 +467,16 @@ config USB_SL811_HCD
To compile this driver as a module, choose M here: the
module will be called sl811-hcd.
config USB_SL811_HCD_ISO
bool "partial ISO support"
depends on USB_SL811_HCD
help
The driver doesn't support iso_frame_desc (yet), but for some simple
devices that just queue one ISO frame per URB, then ISO transfers
"should" work using the normal urb status fields.
If unsure, say N.
config USB_SL811_CS
tristate "CF/PCMCIA support for SL811HS HCD"
depends on USB_SL811_HCD && PCMCIA
......
drivers/usb/host/ehci-ath79.c 0 → 100644
View file @ 50ee9339
/*
* Bus Glue for Atheros AR7XXX/AR9XXX built-in EHCI controller.
*
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Parts of this file are based on Atheros' 2.6.15 BSP
* Copyright (C) 2007 Atheros Communications, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/platform_device.h>
enum {
EHCI_ATH79_IP_V1 = 0,
EHCI_ATH79_IP_V2,
};
static const struct platform_device_id ehci_ath79_id_table[] = {
{
.name = "ar71xx-ehci",
.driver_data = EHCI_ATH79_IP_V1,
},
{
.name = "ar724x-ehci",
.driver_data = EHCI_ATH79_IP_V2,
},
{
.name = "ar913x-ehci",
.driver_data = EHCI_ATH79_IP_V2,
},
{
/* terminating entry */
},
};
MODULE_DEVICE_TABLE(platform, ehci_ath79_id_table);
static int ehci_ath79_init(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
struct platform_device *pdev = to_platform_device(hcd->self.controller);
const struct platform_device_id *id;
int ret;
id = platform_get_device_id(pdev);
if (!id) {
dev_err(hcd->self.controller, "missing device id\n");
return -EINVAL;
}
switch (id->driver_data) {
case EHCI_ATH79_IP_V1:
ehci->has_synopsys_hc_bug = 1;
ehci->caps = hcd->regs;
ehci->regs = hcd->regs +
HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
break;
case EHCI_ATH79_IP_V2:
hcd->has_tt = 1;
ehci->caps = hcd->regs + 0x100;
ehci->regs = hcd->regs + 0x100 +
HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
break;
default:
BUG();
}
dbg_hcs_params(ehci, "reset");
dbg_hcc_params(ehci, "reset");
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
ehci->sbrn = 0x20;
ehci_reset(ehci);
ret = ehci_init(hcd);
if (ret)
return ret;
ehci_port_power(ehci, 0);
return 0;
}
static const struct hc_driver ehci_ath79_hc_driver = {
.description = hcd_name,
.product_desc = "Atheros built-in EHCI controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.reset = ehci_ath79_init,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
.get_frame_number = ehci_get_frame,
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
static int ehci_ath79_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
int irq;
int ret;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_dbg(&pdev->dev, "no IRQ specified\n");
return -ENODEV;
}
irq = res->start;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_dbg(&pdev->dev, "no base address specified\n");
return -ENODEV;
}
hcd = usb_create_hcd(&ehci_ath79_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd)
return -ENOMEM;
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
dev_dbg(&pdev->dev, "controller already in use\n");
ret = -EBUSY;
goto err_put_hcd;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
dev_dbg(&pdev->dev, "error mapping memory\n");
ret = -EFAULT;
goto err_release_region;
}
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret)
goto err_iounmap;
return 0;
err_iounmap:
iounmap(hcd->regs);
err_release_region:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err_put_hcd:
usb_put_hcd(hcd);
return ret;
}
static int ehci_ath79_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
return 0;
}
static struct platform_driver ehci_ath79_driver = {
.probe = ehci_ath79_probe,
.remove = ehci_ath79_remove,
.id_table = ehci_ath79_id_table,
.driver = {
.owner = THIS_MODULE,
.name = "ath79-ehci",
}
};
MODULE_ALIAS(PLATFORM_MODULE_PREFIX "ath79-ehci");
drivers/usb/host/ehci-hcd.c
View file @ 50ee9339
......@@ -1265,6 +1265,16 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER tegra_ehci_driver
#endif
#ifdef CONFIG_USB_EHCI_S5P
#include "ehci-s5p.c"
#define PLATFORM_DRIVER s5p_ehci_driver
#endif
#ifdef CONFIG_USB_EHCI_ATH79
#include "ehci-ath79.c"
#define PLATFORM_DRIVER ehci_ath79_driver
#endif
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
!defined(XILINX_OF_PLATFORM_DRIVER)
......
drivers/usb/host/ehci-hub.c
View file @ 50ee9339
......@@ -127,7 +127,7 @@ static int ehci_port_change(struct ehci_hcd *ehci)
return 0;
}
static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
static __maybe_unused void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
bool suspending, bool do_wakeup)
{
int port;
......
drivers/usb/host/ehci-q.c
View file @ 50ee9339
......@@ -1183,6 +1183,10 @@ static void end_unlink_async (struct ehci_hcd *ehci)
ehci->reclaim = NULL;
start_unlink_async (ehci, next);
}
if (ehci->has_synopsys_hc_bug)
ehci_writel(ehci, (u32) ehci->async->qh_dma,
&ehci->regs->async_next);
}
/* makes sure the async qh will become idle */
......
drivers/usb/host/ehci-s5p.c 0 → 100644
View file @ 50ee9339
/*
* SAMSUNG S5P USB HOST EHCI Controller
*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Author: Jingoo Han <jg1.han@samsung.com>
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <mach/regs-pmu.h>
#include <plat/cpu.h>
#include <plat/ehci.h>
#include <plat/usb-phy.h>
struct s5p_ehci_hcd {
struct device *dev;
struct usb_hcd *hcd;
struct clk *clk;
};
static const struct hc_driver s5p_ehci_hc_driver = {
.description = hcd_name,
.product_desc = "S5P EHCI Host Controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.reset = ehci_init,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
.get_frame_number = ehci_get_frame,
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
static int s5p_ehci_probe(struct platform_device *pdev)
{
struct s5p_ehci_platdata *pdata;
struct s5p_ehci_hcd *s5p_ehci;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
struct resource *res;
int irq;
int err;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "No platform data defined\n");
return -EINVAL;
}
s5p_ehci = kzalloc(sizeof(struct s5p_ehci_hcd), GFP_KERNEL);
if (!s5p_ehci)
return -ENOMEM;
s5p_ehci->dev = &pdev->dev;
hcd = usb_create_hcd(&s5p_ehci_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd) {
dev_err(&pdev->dev, "Unable to create HCD\n");
err = -ENOMEM;
goto fail_hcd;
}
s5p_ehci->clk = clk_get(&pdev->dev, "usbhost");
if (IS_ERR(s5p_ehci->clk)) {
dev_err(&pdev->dev, "Failed to get usbhost clock\n");
err = PTR_ERR(s5p_ehci->clk);
goto fail_clk;
}
err = clk_enable(s5p_ehci->clk);
if (err)
goto fail_clken;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Failed to get I/O memory\n");
err = -ENXIO;
goto fail_io;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = ioremap(res->start, resource_size(res));
if (!hcd->regs) {
dev_err(&pdev->dev, "Failed to remap I/O memory\n");
err = -ENOMEM;
goto fail_io;
}
irq = platform_get_irq(pdev, 0);
if (!irq) {
dev_err(&pdev->dev, "Failed to get IRQ\n");
err = -ENODEV;
goto fail;
}
if (pdata->phy_init)
pdata->phy_init(pdev, S5P_USB_PHY_HOST);
ehci = hcd_to_ehci(hcd);
ehci->caps = hcd->regs;
ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase));
dbg_hcs_params(ehci, "reset");
dbg_hcc_params(ehci, "reset");
/* cache this readonly data; minimize chip reads */
ehci->hcs_params = readl(&ehci->caps->hcs_params);
err = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (err) {
dev_err(&pdev->dev, "Failed to add USB HCD\n");
goto fail;
}
platform_set_drvdata(pdev, s5p_ehci);
return 0;
fail:
iounmap(hcd->regs);
fail_io:
clk_disable(s5p_ehci->clk);
fail_clken:
clk_put(s5p_ehci->clk);
fail_clk:
usb_put_hcd(hcd);
fail_hcd:
kfree(s5p_ehci);
return err;
}
static int s5p_ehci_remove(struct platform_device *pdev)
{
struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
struct s5p_ehci_hcd *s5p_ehci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = s5p_ehci->hcd;
usb_remove_hcd(hcd);
if (pdata && pdata->phy_exit)
pdata->phy_exit(pdev, S5P_USB_PHY_HOST);
iounmap(hcd->regs);
clk_disable(s5p_ehci->clk);
clk_put(s5p_ehci->clk);
usb_put_hcd(hcd);
kfree(s5p_ehci);
return 0;
}
static void s5p_ehci_shutdown(struct platform_device *pdev)
{
struct s5p_ehci_hcd *s5p_ehci = platform_get_drvdata(pdev);
struct usb_hcd *hcd = s5p_ehci->hcd;
if (hcd->driver->shutdown)
hcd->driver->shutdown(hcd);
}
static struct platform_driver s5p_ehci_driver = {
.probe = s5p_ehci_probe,
.remove = s5p_ehci_remove,
.shutdown = s5p_ehci_shutdown,
.driver = {
.name = "s5p-ehci",
.owner = THIS_MODULE,
}
};
MODULE_ALIAS("platform:s5p-ehci");
drivers/usb/host/ehci.h
View file @ 50ee9339
......@@ -134,6 +134,7 @@ struct ehci_hcd { /* one per controller */
unsigned amd_pll_fix:1;
unsigned fs_i_thresh:1; /* Intel iso scheduling */
unsigned use_dummy_qh:1; /* AMD Frame List table quirk*/
unsigned has_synopsys_hc_bug:1; /* Synopsys HC */
/* required for usb32 quirk */
#define OHCI_CTRL_HCFS (3 << 6)
......
drivers/usb/host/ohci-ath79.c 0 → 100644
View file @ 50ee9339
/*
* OHCI HCD (Host Controller Driver) for USB.
*
* Bus Glue for Atheros AR71XX/AR724X built-in OHCI controller.
*
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Parts of this file are based on Atheros' 2.6.15 BSP
* Copyright (C) 2007 Atheros Communications, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/platform_device.h>
static int __devinit ohci_ath79_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
ret = ohci_init(ohci);
if (ret < 0)
return ret;
ret = ohci_run(ohci);
if (ret < 0)
goto err;
return 0;
err:
ohci_stop(hcd);
return ret;
}
static const struct hc_driver ohci_ath79_hc_driver = {
.description = hcd_name,
.product_desc = "Atheros built-in OHCI controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
.start = ohci_ath79_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
.start_port_reset = ohci_start_port_reset,
};
static int ohci_ath79_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
int irq;
int ret;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_dbg(&pdev->dev, "no IRQ specified\n");
return -ENODEV;
}
irq = res->start;
hcd = usb_create_hcd(&ohci_ath79_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_dbg(&pdev->dev, "no base address specified\n");
ret = -ENODEV;
goto err_put_hcd;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
dev_dbg(&pdev->dev, "controller already in use\n");
ret = -EBUSY;
goto err_put_hcd;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
dev_dbg(&pdev->dev, "error mapping memory\n");
ret = -EFAULT;
goto err_release_region;
}
ohci_hcd_init(hcd_to_ohci(hcd));
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
if (ret)
goto err_stop_hcd;
return 0;
err_stop_hcd:
iounmap(hcd->regs);
err_release_region:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err_put_hcd:
usb_put_hcd(hcd);
return ret;
}
static int ohci_ath79_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
return 0;
}
static struct platform_driver ohci_hcd_ath79_driver = {
.probe = ohci_ath79_probe,
.remove = ohci_ath79_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "ath79-ohci",
.owner = THIS_MODULE,
},
};
MODULE_ALIAS(PLATFORM_MODULE_PREFIX "ath79-ohci");
drivers/usb/host/ohci-hcd.c
View file @ 50ee9339
......@@ -1105,6 +1105,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ohci_hcd_cns3xxx_driver
#endif
#ifdef CONFIG_USB_OHCI_ATH79
#include "ohci-ath79.c"
#define PLATFORM_DRIVER ohci_hcd_ath79_driver
#endif
#if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \
!defined(OMAP1_PLATFORM_DRIVER) && \
......
drivers/usb/host/sl811-hcd.c
View file @ 50ee9339
......@@ -71,12 +71,6 @@ MODULE_ALIAS("platform:sl811-hcd");
/* for now, use only one transfer register bank */
#undef USE_B
/* this doesn't understand urb->iso_frame_desc[], but if you had a driver
* that just queued one ISO frame per URB then iso transfers "should" work
* using the normal urb status fields.
*/
#define DISABLE_ISO
// #define QUIRK2
#define QUIRK3
......@@ -807,7 +801,7 @@ static int sl811h_urb_enqueue(
int retval;
struct usb_host_endpoint *hep = urb->ep;
#ifdef DISABLE_ISO
#ifndef CONFIG_USB_SL811_HCD_ISO
if (type == PIPE_ISOCHRONOUS)
return -ENOSPC;
#endif
......
drivers/usb/host/u132-hcd.c
View file @ 50ee9339
......@@ -3230,8 +3230,7 @@ static int __init u132_hcd_init(void)
mutex_init(&u132_module_lock);
if (usb_disabled())
return -ENODEV;
printk(KERN_INFO "driver %s built at %s on %s\n", hcd_name, __TIME__,
__DATE__);
printk(KERN_INFO "driver %s\n", hcd_name);
workqueue = create_singlethread_workqueue("u132");
retval = platform_driver_register(&u132_platform_driver);
return retval;
......
drivers/usb/host/uhci-hcd.c
View file @ 50ee9339
......@@ -139,10 +139,7 @@ static void finish_reset(struct uhci_hcd *uhci)
uhci->port_c_suspend = uhci->resuming_ports = 0;
uhci->rh_state = UHCI_RH_RESET;
uhci->is_stopped = UHCI_IS_STOPPED;
uhci_to_hcd(uhci)->state = HC_STATE_HALT;
clear_bit(HCD_FLAG_POLL_RH, &uhci_to_hcd(uhci)->flags);
uhci->dead = 0; /* Full reset resurrects the controller */
}
/*
......@@ -188,10 +185,6 @@ static void configure_hc(struct uhci_hcd *uhci)
outw(uhci->frame_number & UHCI_MAX_SOF_NUMBER,
uhci->io_addr + USBFRNUM);
/* Mark controller as not halted before we enable interrupts */
uhci_to_hcd(uhci)->state = HC_STATE_SUSPENDED;
mb();
/* Enable PIRQ */
pci_write_config_word(pdev, USBLEGSUP, USBLEGSUP_DEFAULT);
......@@ -360,7 +353,6 @@ __acquires(uhci->lock)
static void start_rh(struct uhci_hcd *uhci)
{
uhci_to_hcd(uhci)->state = HC_STATE_RUNNING;
uhci->is_stopped = 0;
/* Mark it configured and running with a 64-byte max packet.
......@@ -449,6 +441,7 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd)
lprintk(errbuf);
}
uhci_hc_died(uhci);
usb_hc_died(hcd);
/* Force a callback in case there are
* pending unlinks */
......@@ -842,16 +835,17 @@ static int uhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
spin_lock_irq(&uhci->lock);
/* Make sure resume from hibernation re-enumerates everything */
if (hibernated)
uhci_hc_died(uhci);
if (hibernated) {
uhci_reset_hc(to_pci_dev(uhci_dev(uhci)), uhci->io_addr);
finish_reset(uhci);
}
/* The firmware or a boot kernel may have changed the controller
* settings during a system wakeup. Check it and reconfigure
* to avoid problems.
/* The firmware may have changed the controller settings during
* a system wakeup. Check it and reconfigure to avoid problems.
*/
else {
check_and_reset_hc(uhci);
/* If the controller was dead before, it's back alive now */
}
configure_hc(uhci);
/* Tell the core if the controller had to be reset */
......
drivers/usb/misc/ftdi-elan.c
View file @ 50ee9339
......@@ -2889,8 +2889,7 @@ static struct usb_driver ftdi_elan_driver = {
static int __init ftdi_elan_init(void)
{
int result;
printk(KERN_INFO "driver %s built at %s on %s\n", ftdi_elan_driver.name,
__TIME__, __DATE__);
printk(KERN_INFO "driver %s\n", ftdi_elan_driver.name);
mutex_init(&ftdi_module_lock);
INIT_LIST_HEAD(&ftdi_static_list);
status_queue = create_singlethread_workqueue("ftdi-status-control");
......
drivers/usb/otg/twl4030-usb.c
View file @ 50ee9339
......@@ -160,6 +160,7 @@ struct twl4030_usb {
int irq;
u8 linkstat;
bool vbus_supplied;
u8 asleep;
bool irq_enabled;
};
......@@ -250,6 +251,8 @@ static enum usb_xceiv_events twl4030_usb_linkstat(struct twl4030_usb *twl)
int status;
int linkstat = USB_EVENT_NONE;
twl->vbus_supplied = false;
/*
* For ID/VBUS sensing, see manual section 15.4.8 ...
* except when using only battery backup power, two
......@@ -265,6 +268,9 @@ static enum usb_xceiv_events twl4030_usb_linkstat(struct twl4030_usb *twl)
if (status < 0)
dev_err(twl->dev, "USB link status err %d\n", status);
else if (status & (BIT(7) | BIT(2))) {
if (status & (BIT(7)))
twl->vbus_supplied = true;
if (status & BIT(2))
linkstat = USB_EVENT_ID;
else
......@@ -484,7 +490,7 @@ static ssize_t twl4030_usb_vbus_show(struct device *dev,
spin_lock_irqsave(&twl->lock, flags);
ret = sprintf(buf, "%s\n",
(twl->linkstat == USB_EVENT_VBUS) ? "on" : "off");
twl->vbus_supplied ? "on" : "off");
spin_unlock_irqrestore(&twl->lock, flags);
return ret;
......@@ -608,6 +614,7 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
twl->otg.set_peripheral = twl4030_set_peripheral;
twl->otg.set_suspend = twl4030_set_suspend;
twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
/* init spinlock for workqueue */
......
drivers/usb/otg/twl6030-usb.c
View file @ 50ee9339
......@@ -101,7 +101,7 @@ struct twl6030_usb {
bool irq_enabled;
};
#define xceiv_to_twl(x) container_of((x), struct twl6030_usb, otg);
#define xceiv_to_twl(x) container_of((x), struct twl6030_usb, otg)
/*-------------------------------------------------------------------------*/
......
drivers/usb/renesas_usbhs/Kconfig 0 → 100644
View file @ 50ee9339
#
# Renesas USB Controller Drivers
#
config USB_RENESAS_USBHS
tristate 'Renesas USBHS controller'
default n
help
Renesas USBHS is a discrete USB host and peripheral controller chip
that supports both full and high speed USB 2.0 data transfers.
It has nine or more configurable endpoints, and endpoint zero.
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "renesas_usbhs" and force all
gadget drivers to also be dynamically linked.
drivers/usb/renesas_usbhs/Makefile 0 → 100644
View file @ 50ee9339
#
# for Renesas USB
#
obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs.o
renesas_usbhs-y := common.o mod.o pipe.o
renesas_usbhs-$(CONFIG_USB_RENESAS_USBHS_UDC) += mod_gadget.o
drivers/usb/renesas_usbhs/common.c 0 → 100644
View file @ 50ee9339
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/io.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#include "./common.h"
/*
* platform call back
*
* renesas usb support platform callback function.
* Below macro call it.
* if platform doesn't have callback, it return 0 (no error)
*/
#define usbhs_platform_call(priv, func, args...)\
(!(priv) ? -ENODEV : \
!((priv)->pfunc->func) ? 0 : \
(priv)->pfunc->func(args))
/*
* common functions
*/
u16 usbhs_read(struct usbhs_priv *priv, u32 reg)
{
return ioread16(priv->base + reg);
}
void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data)
{
iowrite16(data, priv->base + reg);
}
void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data)
{
u16 val = usbhs_read(priv, reg);
val &= ~mask;
val |= data & mask;
usbhs_write(priv, reg, val);
}
/*
* syscfg functions
*/
void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable)
{
usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0);
}
void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable)
{
usbhs_bset(priv, SYSCFG, HSE, enable ? HSE : 0);
}
void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable)
{
usbhs_bset(priv, SYSCFG, USBE, enable ? USBE : 0);
}
void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable)
{
u16 mask = DCFM | DRPD | DPRPU;
u16 val = DCFM | DRPD;
/*
* if enable
*
* - select Host mode
* - D+ Line/D- Line Pull-down
*/
usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
}
void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable)
{
u16 mask = DCFM | DRPD | DPRPU;
u16 val = DPRPU;
/*
* if enable
*
* - select Function mode
* - D+ Line Pull-up
*/
usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
}
/*
* frame functions
*/
int usbhs_frame_get_num(struct usbhs_priv *priv)
{
return usbhs_read(priv, FRMNUM) & FRNM_MASK;
}
/*
* local functions
*/
static struct usbhs_priv *usbhsc_pdev_to_priv(struct platform_device *pdev)
{
return dev_get_drvdata(&pdev->dev);
}
static void usbhsc_bus_ctrl(struct usbhs_priv *priv, int enable)
{
int wait = usbhs_get_dparam(priv, buswait_bwait);
u16 data = 0;
if (enable) {
/* set bus wait if platform have */
if (wait)
usbhs_bset(priv, BUSWAIT, 0x000F, wait);
}
usbhs_write(priv, DVSTCTR, data);
}
/*
* platform default param
*/
static u32 usbhsc_default_pipe_type[] = {
USB_ENDPOINT_XFER_CONTROL,
USB_ENDPOINT_XFER_ISOC,
USB_ENDPOINT_XFER_ISOC,
USB_ENDPOINT_XFER_BULK,
USB_ENDPOINT_XFER_BULK,
USB_ENDPOINT_XFER_BULK,
USB_ENDPOINT_XFER_INT,
USB_ENDPOINT_XFER_INT,
USB_ENDPOINT_XFER_INT,
USB_ENDPOINT_XFER_INT,
};
/*
* driver callback functions
*/
static void usbhsc_notify_hotplug(struct work_struct *work)
{
struct usbhs_priv *priv = container_of(work,
struct usbhs_priv,
notify_hotplug_work);
struct platform_device *pdev = usbhs_priv_to_pdev(priv);
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
int id;
int enable;
int ret;
/*
* get vbus status from platform
*/
enable = usbhs_platform_call(priv, get_vbus, pdev);
/*
* get id from platform
*/
id = usbhs_platform_call(priv, get_id, pdev);
if (enable && !mod) {
ret = usbhs_mod_change(priv, id);
if (ret < 0)
return;
dev_dbg(&pdev->dev, "%s enable\n", __func__);
/* enable PM */
pm_runtime_get_sync(&pdev->dev);
/* USB on */
usbhs_sys_clock_ctrl(priv, enable);
usbhsc_bus_ctrl(priv, enable);
/* module start */
usbhs_mod_call(priv, start, priv);
} else if (!enable && mod) {
dev_dbg(&pdev->dev, "%s disable\n", __func__);
/* module stop */
usbhs_mod_call(priv, stop, priv);
/* USB off */
usbhsc_bus_ctrl(priv, enable);
usbhs_sys_clock_ctrl(priv, enable);
/* disable PM */
pm_runtime_put_sync(&pdev->dev);
usbhs_mod_change(priv, -1);
/* reset phy for next connection */
usbhs_platform_call(priv, phy_reset, pdev);
}
}
static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
{
struct usbhs_priv *priv = usbhsc_pdev_to_priv(pdev);
/*
* This functions will be called in interrupt.
* To make sure safety context,
* use workqueue for usbhs_notify_hotplug
*/
schedule_work(&priv->notify_hotplug_work);
return 0;
}
/*
* platform functions
*/
static int __devinit usbhs_probe(struct platform_device *pdev)
{
struct renesas_usbhs_platform_info *info = pdev->dev.platform_data;
struct renesas_usbhs_driver_callback *dfunc;
struct usbhs_priv *priv;
struct resource *res;
unsigned int irq;
int ret;
/* check platform information */
if (!info ||
!info->platform_callback.get_id ||
!info->platform_callback.get_vbus) {
dev_err(&pdev->dev, "no platform information\n");
return -EINVAL;
}
/* platform data */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
if (!res || (int)irq <= 0) {
dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n");
return -ENODEV;
}
/* usb private data */
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
dev_err(&pdev->dev, "Could not allocate priv\n");
return -ENOMEM;
}
priv->base = ioremap_nocache(res->start, resource_size(res));
if (!priv->base) {
dev_err(&pdev->dev, "ioremap error.\n");
ret = -ENOMEM;
goto probe_end_kfree;
}
/*
* care platform info
*/
priv->pfunc = &info->platform_callback;
priv->dparam = &info->driver_param;
/* set driver callback functions for platform */
dfunc = &info->driver_callback;
dfunc->notify_hotplug = usbhsc_drvcllbck_notify_hotplug;
/* set default param if platform doesn't have */
if (!priv->dparam->pipe_type) {
priv->dparam->pipe_type = usbhsc_default_pipe_type;
priv->dparam->pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
}
/*
* priv settings
*/
priv->irq = irq;
priv->pdev = pdev;
INIT_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
spin_lock_init(usbhs_priv_to_lock(priv));
/* call pipe and module init */
ret = usbhs_pipe_probe(priv);
if (ret < 0)
goto probe_end_mod_exit;
ret = usbhs_mod_probe(priv);
if (ret < 0)
goto probe_end_iounmap;
/* dev_set_drvdata should be called after usbhs_mod_init */
dev_set_drvdata(&pdev->dev, priv);
/*
* deviece reset here because
* USB device might be used in boot loader.
*/
usbhs_sys_clock_ctrl(priv, 0);
/*
* platform call
*
* USB phy setup might depend on CPU/Board.
* If platform has its callback functions,
* call it here.
*/
ret = usbhs_platform_call(priv, hardware_init, pdev);
if (ret < 0) {
dev_err(&pdev->dev, "platform prove failed.\n");
goto probe_end_pipe_exit;
}
/* reset phy for connection */
usbhs_platform_call(priv, phy_reset, pdev);
/*
* manual call notify_hotplug for cold plug
*/
pm_runtime_enable(&pdev->dev);
ret = usbhsc_drvcllbck_notify_hotplug(pdev);
if (ret < 0)
goto probe_end_call_remove;
dev_info(&pdev->dev, "probed\n");
return ret;
probe_end_call_remove:
usbhs_platform_call(priv, hardware_exit, pdev);
probe_end_pipe_exit:
usbhs_pipe_remove(priv);
probe_end_mod_exit:
usbhs_mod_remove(priv);
probe_end_iounmap:
iounmap(priv->base);
probe_end_kfree:
kfree(priv);
dev_info(&pdev->dev, "probe failed\n");
return ret;
}
static int __devexit usbhs_remove(struct platform_device *pdev)
{
struct usbhs_priv *priv = usbhsc_pdev_to_priv(pdev);
dev_dbg(&pdev->dev, "usb remove\n");
pm_runtime_disable(&pdev->dev);
usbhsc_bus_ctrl(priv, 0);
usbhs_platform_call(priv, hardware_exit, pdev);
usbhs_pipe_remove(priv);
usbhs_mod_remove(priv);
iounmap(priv->base);
kfree(priv);
return 0;
}
static struct platform_driver renesas_usbhs_driver = {
.driver = {
.name = "renesas_usbhs",
},
.probe = usbhs_probe,
.remove = __devexit_p(usbhs_remove),
};
static int __init usbhs_init(void)
{
return platform_driver_register(&renesas_usbhs_driver);
}
static void __exit usbhs_exit(void)
{
platform_driver_unregister(&renesas_usbhs_driver);
}
module_init(usbhs_init);
module_exit(usbhs_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Renesas USB driver");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
drivers/usb/renesas_usbhs/common.h 0 → 100644
View file @ 50ee9339
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef RENESAS_USB_DRIVER_H
#define RENESAS_USB_DRIVER_H
#include <linux/platform_device.h>
#include <linux/usb/renesas_usbhs.h>
struct usbhs_priv;
#include "./mod.h"
#include "./pipe.h"
/*
*
* register define
*
*/
#define SYSCFG 0x0000
#define BUSWAIT 0x0002
#define DVSTCTR 0x0008
#define CFIFO 0x0014
#define CFIFOSEL 0x0020
#define CFIFOCTR 0x0022
#define INTENB0 0x0030
#define INTENB1 0x0032
#define BRDYENB 0x0036
#define NRDYENB 0x0038
#define BEMPENB 0x003A
#define INTSTS0 0x0040
#define INTSTS1 0x0042
#define BRDYSTS 0x0046
#define NRDYSTS 0x0048
#define BEMPSTS 0x004A
#define FRMNUM 0x004C
#define USBREQ 0x0054 /* USB request type register */
#define USBVAL 0x0056 /* USB request value register */
#define USBINDX 0x0058 /* USB request index register */
#define USBLENG 0x005A /* USB request length register */
#define DCPCFG 0x005C
#define DCPMAXP 0x005E
#define DCPCTR 0x0060
#define PIPESEL 0x0064
#define PIPECFG 0x0068
#define PIPEBUF 0x006A
#define PIPEMAXP 0x006C
#define PIPEPERI 0x006E
#define PIPEnCTR 0x0070
/* SYSCFG */
#define SCKE (1 << 10) /* USB Module Clock Enable */
#define HSE (1 << 7) /* High-Speed Operation Enable */
#define DCFM (1 << 6) /* Controller Function Select */
#define DRPD (1 << 5) /* D+ Line/D- Line Resistance Control */
#define DPRPU (1 << 4) /* D+ Line Resistance Control */
#define USBE (1 << 0) /* USB Module Operation Enable */
/* DVSTCTR */
#define EXTLP (1 << 10) /* Controls the EXTLP pin output state */
#define PWEN (1 << 9) /* Controls the PWEN pin output state */
#define RHST (0x7) /* Reset Handshake */
#define RHST_LOW_SPEED 1 /* Low-speed connection */
#define RHST_FULL_SPEED 2 /* Full-speed connection */
#define RHST_HIGH_SPEED 3 /* High-speed connection */
/* CFIFOSEL */
#define MBW_32 (0x2 << 10) /* CFIFO Port Access Bit Width */
/* CFIFOCTR */
#define BVAL (1 << 15) /* Buffer Memory Enable Flag */
#define BCLR (1 << 14) /* CPU buffer clear */
#define FRDY (1 << 13) /* FIFO Port Ready */
#define DTLN_MASK (0x0FFF) /* Receive Data Length */
/* INTENB0 */
#define VBSE (1 << 15) /* Enable IRQ VBUS_0 and VBUSIN_0 */
#define RSME (1 << 14) /* Enable IRQ Resume */
#define SOFE (1 << 13) /* Enable IRQ Frame Number Update */
#define DVSE (1 << 12) /* Enable IRQ Device State Transition */
#define CTRE (1 << 11) /* Enable IRQ Control Stage Transition */
#define BEMPE (1 << 10) /* Enable IRQ Buffer Empty */
#define NRDYE (1 << 9) /* Enable IRQ Buffer Not Ready Response */
#define BRDYE (1 << 8) /* Enable IRQ Buffer Ready */
/* INTENB1 */
#define BCHGE (1 << 14) /* USB Bus Change Interrupt Enable */
#define DTCHE (1 << 12) /* Disconnection Detect Interrupt Enable */
#define ATTCHE (1 << 11) /* Connection Detect Interrupt Enable */
#define EOFERRE (1 << 6) /* EOF Error Detect Interrupt Enable */
#define SIGNE (1 << 5) /* Setup Transaction Error Interrupt Enable */
#define SACKE (1 << 4) /* Setup Transaction ACK Interrupt Enable */
/* INTSTS0 */
#define DVST (1 << 12) /* Device State Transition Interrupt Status */
#define CTRT (1 << 11) /* Control Stage Interrupt Status */
#define BEMP (1 << 10) /* Buffer Empty Interrupt Status */
#define BRDY (1 << 8) /* Buffer Ready Interrupt Status */
#define VBSTS (1 << 7) /* VBUS_0 and VBUSIN_0 Input Status */
#define VALID (1 << 3) /* USB Request Receive */
#define DVSQ_MASK (0x3 << 4) /* Device State */
#define POWER_STATE (0 << 4)
#define DEFAULT_STATE (1 << 4)
#define ADDRESS_STATE (2 << 4)
#define CONFIGURATION_STATE (3 << 4)
#define CTSQ_MASK (0x7) /* Control Transfer Stage */
#define IDLE_SETUP_STAGE 0 /* Idle stage or setup stage */
#define READ_DATA_STAGE 1 /* Control read data stage */
#define READ_STATUS_STAGE 2 /* Control read status stage */
#define WRITE_DATA_STAGE 3 /* Control write data stage */
#define WRITE_STATUS_STAGE 4 /* Control write status stage */
#define NODATA_STATUS_STAGE 5 /* Control write NoData status stage */
#define SEQUENCE_ERROR 6 /* Control transfer sequence error */
/* PIPECFG */
/* DCPCFG */
#define TYPE_NONE (0 << 14) /* Transfer Type */
#define TYPE_BULK (1 << 14)
#define TYPE_INT (2 << 14)
#define TYPE_ISO (3 << 14)
#define DBLB (1 << 9) /* Double Buffer Mode */
#define SHTNAK (1 << 7) /* Pipe Disable in Transfer End */
#define DIR_OUT (1 << 4) /* Transfer Direction */
/* PIPEMAXP */
/* DCPMAXP */
#define DEVSEL_MASK (0xF << 12) /* Device Select */
#define DCP_MAXP_MASK (0x7F)
#define PIPE_MAXP_MASK (0x7FF)
/* PIPEBUF */
#define BUFSIZE_SHIFT 10
#define BUFSIZE_MASK (0x1F << BUFSIZE_SHIFT)
#define BUFNMB_MASK (0xFF)
/* PIPEnCTR */
/* DCPCTR */
#define BSTS (1 << 15) /* Buffer Status */
#define CSSTS (1 << 12) /* CSSTS Status */
#define SQCLR (1 << 8) /* Toggle Bit Clear */
#define ACLRM (1 << 9) /* Buffer Auto-Clear Mode */
#define PBUSY (1 << 5) /* Pipe Busy */
#define PID_MASK (0x3) /* Response PID */
#define PID_NAK 0
#define PID_BUF 1
#define PID_STALL10 2
#define PID_STALL11 3
#define CCPL (1 << 2) /* Control Transfer End Enable */
/* FRMNUM */
#define FRNM_MASK (0x7FF)
/*
* struct
*/
struct usbhs_priv {
void __iomem *base;
unsigned int irq;
struct renesas_usbhs_platform_callback *pfunc;
struct renesas_usbhs_driver_param *dparam;
struct work_struct notify_hotplug_work;
struct platform_device *pdev;
spinlock_t lock;
/*
* module control
*/
struct usbhs_mod_info mod_info;
/*
* pipe control
*/
struct usbhs_pipe_info pipe_info;
};
/*
* common
*/
u16 usbhs_read(struct usbhs_priv *priv, u32 reg);
void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data);
void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data);
/*
* sysconfig
*/
void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable);
void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable);
void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable);
void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable);
void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable);
/*
* frame
*/
int usbhs_frame_get_num(struct usbhs_priv *priv);
/*
* data
*/
#define usbhs_get_dparam(priv, param) (priv->dparam->param)
#define usbhs_priv_to_pdev(priv) (priv->pdev)
#define usbhs_priv_to_dev(priv) (&priv->pdev->dev)
#define usbhs_priv_to_lock(priv) (&priv->lock)
#endif /* RENESAS_USB_DRIVER_H */
drivers/usb/renesas_usbhs/mod.c 0 → 100644
View file @ 50ee9339
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/interrupt.h>
#include "./common.h"
#include "./mod.h"
#define usbhs_priv_to_modinfo(priv) (&priv->mod_info)
/*
* host / gadget functions
*
* renesas_usbhs host/gadget can register itself by below functions.
* these functions are called when probe
*
*/
void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *mod, int id)
{
struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
info->mod[id] = mod;
mod->priv = priv;
}
struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id)
{
struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
struct usbhs_mod *ret = NULL;
switch (id) {
case USBHS_HOST:
case USBHS_GADGET:
ret = info->mod[id];
break;
}
return ret;
}
int usbhs_mod_is_host(struct usbhs_priv *priv, struct usbhs_mod *mod)
{
struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
if (!mod)
return -EINVAL;
return info->mod[USBHS_HOST] == mod;
}
struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv)
{
struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
return info->curt;
}
int usbhs_mod_change(struct usbhs_priv *priv, int id)
{
struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
struct usbhs_mod *mod = NULL;
int ret = 0;
/* id < 0 mean no current */
switch (id) {
case USBHS_HOST:
case USBHS_GADGET:
mod = info->mod[id];
break;
default:
ret = -EINVAL;
}
info->curt = mod;
return ret;
}
static irqreturn_t usbhs_interrupt(int irq, void *data);
int usbhs_mod_probe(struct usbhs_priv *priv)
{
struct device *dev = usbhs_priv_to_dev(priv);
int ret;
/*
* install host/gadget driver
*/
ret = usbhs_mod_gadget_probe(priv);
if (ret < 0)
return ret;
/* irq settings */
ret = request_irq(priv->irq, usbhs_interrupt,
IRQF_DISABLED, dev_name(dev), priv);
if (ret) {
dev_err(dev, "irq request err\n");
goto mod_init_gadget_err;
}
return ret;
mod_init_gadget_err:
usbhs_mod_gadget_remove(priv);
return ret;
}
void usbhs_mod_remove(struct usbhs_priv *priv)
{
usbhs_mod_gadget_remove(priv);
free_irq(priv->irq, priv);
}
/*
* status functions
*/
int usbhs_status_get_usb_speed(struct usbhs_irq_state *irq_state)
{
switch (irq_state->dvstctr & RHST) {
case RHST_LOW_SPEED:
return USB_SPEED_LOW;
case RHST_FULL_SPEED:
return USB_SPEED_FULL;
case RHST_HIGH_SPEED:
return USB_SPEED_HIGH;
}
return USB_SPEED_UNKNOWN;
}
int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state)
{
int state = irq_state->intsts0 & DVSQ_MASK;
switch (state) {
case POWER_STATE:
case DEFAULT_STATE:
case ADDRESS_STATE:
case CONFIGURATION_STATE:
return state;
}
return -EIO;
}
int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state)
{
/*
* return value
*
* IDLE_SETUP_STAGE
* READ_DATA_STAGE
* READ_STATUS_STAGE
* WRITE_DATA_STAGE
* WRITE_STATUS_STAGE
* NODATA_STATUS_STAGE
* SEQUENCE_ERROR
*/
return (int)irq_state->intsts0 & CTSQ_MASK;
}
static void usbhs_status_get_each_irq(struct usbhs_priv *priv,
struct usbhs_irq_state *state)
{
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
state->intsts0 = usbhs_read(priv, INTSTS0);
state->intsts1 = usbhs_read(priv, INTSTS1);
state->brdysts = usbhs_read(priv, BRDYSTS);
state->nrdysts = usbhs_read(priv, NRDYSTS);
state->bempsts = usbhs_read(priv, BEMPSTS);
state->dvstctr = usbhs_read(priv, DVSTCTR);
/* mask */
state->bempsts &= mod->irq_bempsts;
state->brdysts &= mod->irq_brdysts;
}
/*
* interrupt
*/
#define INTSTS0_MAGIC 0xF800 /* acknowledge magical interrupt sources */
#define INTSTS1_MAGIC 0xA870 /* acknowledge magical interrupt sources */
static irqreturn_t usbhs_interrupt(int irq, void *data)
{
struct usbhs_priv *priv = data;
struct usbhs_irq_state irq_state;
usbhs_status_get_each_irq(priv, &irq_state);
/*
* clear interrupt
*
* The hardware is _very_ picky to clear interrupt bit.
* Especially INTSTS0_MAGIC, INTSTS1_MAGIC value.
*
* see
* "Operation"
* - "Control Transfer (DCP)"
* - Function :: VALID bit should 0
*/
usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
usbhs_write(priv, BRDYSTS, 0);
usbhs_write(priv, NRDYSTS, 0);
usbhs_write(priv, BEMPSTS, 0);
/*
* call irq callback functions
* see also
* usbhs_irq_setting_update
*/
if (irq_state.intsts0 & DVST)
usbhs_mod_call(priv, irq_dev_state, priv, &irq_state);
if (irq_state.intsts0 & CTRT)
usbhs_mod_call(priv, irq_ctrl_stage, priv, &irq_state);
if (irq_state.intsts0 & BEMP)
usbhs_mod_call(priv, irq_empty, priv, &irq_state);
if (irq_state.intsts0 & BRDY)
usbhs_mod_call(priv, irq_ready, priv, &irq_state);
return IRQ_HANDLED;
}
void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
{
u16 intenb0 = 0;
usbhs_write(priv, INTENB0, 0);
usbhs_write(priv, BEMPENB, 0);
usbhs_write(priv, BRDYENB, 0);
/*
* see also
* usbhs_interrupt
*/
/*
* it don't enable DVSE (intenb0) here
* but "mod->irq_dev_state" will be called.
*/
if (mod->irq_ctrl_stage)
intenb0 |= CTRE;
if (mod->irq_empty && mod->irq_bempsts) {
usbhs_write(priv, BEMPENB, mod->irq_bempsts);
intenb0 |= BEMPE;
}
if (mod->irq_ready && mod->irq_brdysts) {
usbhs_write(priv, BRDYENB, mod->irq_brdysts);
intenb0 |= BRDYE;
}
usbhs_write(priv, INTENB0, intenb0);
}
drivers/usb/renesas_usbhs/mod.h 0 → 100644
View file @ 50ee9339
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef RENESAS_USB_MOD_H
#define RENESAS_USB_MOD_H
#include <linux/spinlock.h>
#include <linux/usb/renesas_usbhs.h>
#include "./common.h"
/*
* struct
*/
struct usbhs_irq_state {
u16 intsts0;
u16 intsts1;
u16 brdysts;
u16 nrdysts;
u16 bempsts;
u16 dvstctr;
};
struct usbhs_mod {
char *name;
/*
* entry point from common.c
*/
int (*start)(struct usbhs_priv *priv);
int (*stop)(struct usbhs_priv *priv);
/* INTSTS0 :: DVST (DVSQ) */
int (*irq_dev_state)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* INTSTS0 :: CTRT (CTSQ) */
int (*irq_ctrl_stage)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
/* INTSTS0 :: BEMP */
/* BEMPSTS */
int (*irq_empty)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
u16 irq_bempsts;
/* INTSTS0 :: BRDY */
/* BRDYSTS */
int (*irq_ready)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
u16 irq_brdysts;
struct usbhs_priv *priv;
};
struct usbhs_mod_info {
struct usbhs_mod *mod[USBHS_MAX];
struct usbhs_mod *curt; /* current mod */
};
/*
* for host/gadget module
*/
struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id);
struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv);
void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *usb, int id);
int usbhs_mod_is_host(struct usbhs_priv *priv, struct usbhs_mod *mod);
int usbhs_mod_change(struct usbhs_priv *priv, int id);
int usbhs_mod_probe(struct usbhs_priv *priv);
void usbhs_mod_remove(struct usbhs_priv *priv);
/*
* status functions
*/
int usbhs_status_get_usb_speed(struct usbhs_irq_state *irq_state);
int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state);
int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state);
/*
* callback functions
*/
void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod);
#define usbhs_mod_call(priv, func, param...) \
({ \
struct usbhs_mod *mod; \
mod = usbhs_mod_get_current(priv); \
!mod ? -ENODEV : \
!mod->func ? 0 : \
mod->func(param); \
})
/*
* gadget control
*/
#ifdef CONFIG_USB_RENESAS_USBHS_UDC
extern int __devinit usbhs_mod_gadget_probe(struct usbhs_priv *priv);
extern void __devexit usbhs_mod_gadget_remove(struct usbhs_priv *priv);
#else
static inline int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
{
return 0;
}
static inline void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
{
}
#endif
#endif /* RENESAS_USB_MOD_H */
drivers/usb/renesas_usbhs/mod_gadget.c 0 → 100644
View file @ 50ee9339
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include "common.h"
/*
* struct
*/
struct usbhsg_request {
struct usb_request req;
struct list_head node;
};
#define EP_NAME_SIZE 8
struct usbhsg_gpriv;
struct usbhsg_pipe_handle;
struct usbhsg_uep {
struct usb_ep ep;
struct usbhs_pipe *pipe;
struct list_head list;
char ep_name[EP_NAME_SIZE];
struct usbhsg_gpriv *gpriv;
struct usbhsg_pipe_handle *handler;
};
struct usbhsg_gpriv {
struct usb_gadget gadget;
struct usbhs_mod mod;
struct usbhsg_uep *uep;
int uep_size;
struct usb_gadget_driver *driver;
u32 status;
#define USBHSG_STATUS_STARTED (1 << 0)
#define USBHSG_STATUS_REGISTERD (1 << 1)
#define USBHSG_STATUS_WEDGE (1 << 2)
};
struct usbhsg_pipe_handle {
int (*prepare)(struct usbhsg_uep *uep, struct usbhsg_request *ureq);
int (*try_run)(struct usbhsg_uep *uep, struct usbhsg_request *ureq);
void (*irq_mask)(struct usbhsg_uep *uep, int enable);
};
struct usbhsg_recip_handle {
char *name;
int (*device)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
struct usb_ctrlrequest *ctrl);
int (*interface)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
struct usb_ctrlrequest *ctrl);
int (*endpoint)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
struct usb_ctrlrequest *ctrl);
};
/*
* macro
*/
#define usbhsg_priv_to_gpriv(priv) \
container_of( \
usbhs_mod_get(priv, USBHS_GADGET), \
struct usbhsg_gpriv, mod)
#define __usbhsg_for_each_uep(start, pos, g, i) \
for (i = start, pos = (g)->uep; \
i < (g)->uep_size; \
i++, pos = (g)->uep + i)
#define usbhsg_for_each_uep(pos, gpriv, i) \
__usbhsg_for_each_uep(1, pos, gpriv, i)
#define usbhsg_for_each_uep_with_dcp(pos, gpriv, i) \
__usbhsg_for_each_uep(0, pos, gpriv, i)
#define usbhsg_gadget_to_gpriv(g)\
container_of(g, struct usbhsg_gpriv, gadget)
#define usbhsg_req_to_ureq(r)\
container_of(r, struct usbhsg_request, req)
#define usbhsg_ep_to_uep(e) container_of(e, struct usbhsg_uep, ep)
#define usbhsg_gpriv_to_lock(gp) usbhs_priv_to_lock((gp)->mod.priv)
#define usbhsg_gpriv_to_dev(gp) usbhs_priv_to_dev((gp)->mod.priv)
#define usbhsg_gpriv_to_priv(gp) ((gp)->mod.priv)
#define usbhsg_gpriv_to_dcp(gp) ((gp)->uep)
#define usbhsg_gpriv_to_nth_uep(gp, i) ((gp)->uep + i)
#define usbhsg_uep_to_gpriv(u) ((u)->gpriv)
#define usbhsg_uep_to_pipe(u) ((u)->pipe)
#define usbhsg_pipe_to_uep(p) ((p)->mod_private)
#define usbhsg_is_dcp(u) ((u) == usbhsg_gpriv_to_dcp((u)->gpriv))
#define usbhsg_is_not_connected(gp) ((gp)->gadget.speed == USB_SPEED_UNKNOWN)
/* status */
#define usbhsg_status_init(gp) do {(gp)->status = 0; } while (0)
#define usbhsg_status_set(gp, b) (gp->status |= b)
#define usbhsg_status_clr(gp, b) (gp->status &= ~b)
#define usbhsg_status_has(gp, b) (gp->status & b)
/*
* list push/pop
*/
static void usbhsg_queue_push(struct usbhsg_uep *uep,
struct usbhsg_request *ureq)
{
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
/*
********* assume under spin lock *********
*/
list_del_init(&ureq->node);
list_add_tail(&ureq->node, &uep->list);
ureq->req.actual = 0;
ureq->req.status = -EINPROGRESS;
dev_dbg(dev, "pipe %d : queue push (%d)\n",
usbhs_pipe_number(pipe),
ureq->req.length);
}
static struct usbhsg_request *usbhsg_queue_get(struct usbhsg_uep *uep)
{
/*
********* assume under spin lock *********
*/
if (list_empty(&uep->list))
return NULL;
return list_entry(uep->list.next, struct usbhsg_request, node);
}
#define usbhsg_queue_prepare(uep) __usbhsg_queue_handler(uep, 1);
#define usbhsg_queue_handle(uep) __usbhsg_queue_handler(uep, 0);
static int __usbhsg_queue_handler(struct usbhsg_uep *uep, int prepare)
{
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
struct usbhsg_request *ureq;
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
int is_locked;
int ret = 0;
if (!uep->handler) {
dev_err(dev, "no handler function\n");
return -EIO;
}
/*
* CAUTION [*queue handler*]
*
* This function will be called for start/restart queue operation.
* OTOH the most much worry for USB driver is spinlock nest.
* Specially it are
* - usb_ep_ops :: queue
* - usb_request :: complete
*
* But the caller of this function need not care about spinlock.
* This function is using spin_trylock_irqsave for it.
* if "is_locked" is 1, this mean this function lock it.
* but if it is 0, this mean it is already under spin lock.
* see also
* CAUTION [*endpoint queue*]
* CAUTION [*request complete*]
*/
/****************** spin try lock *******************/
is_locked = spin_trylock_irqsave(lock, flags);
ureq = usbhsg_queue_get(uep);
if (ureq) {
if (prepare)
ret = uep->handler->prepare(uep, ureq);
else
ret = uep->handler->try_run(uep, ureq);
}
if (is_locked)
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ******************/
return ret;
}
static void usbhsg_queue_pop(struct usbhsg_uep *uep,
struct usbhsg_request *ureq,
int status)
{
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
/*
********* assume under spin lock *********
*/
/*
* CAUTION [*request complete*]
*
* There is a possibility not to be called in correct order
* if "complete" is called without spinlock.
*
* So, this function assume it is under spinlock,
* and call usb_request :: complete.
*
* But this "complete" will push next usb_request.
* It mean "usb_ep_ops :: queue" which is using spinlock is called
* under spinlock.
*
* To avoid dead-lock, this driver is using spin_trylock.
* CAUTION [*endpoint queue*]
* CAUTION [*queue handler*]
*/
dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
list_del_init(&ureq->node);
ureq->req.status = status;
ureq->req.complete(&uep->ep, &ureq->req);
/* more request ? */
if (0 == status)
usbhsg_queue_prepare(uep);
}
/*
* irq enable/disable function
*/
#define usbhsg_irq_callback_ctrl(uep, status, enable) \
({ \
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); \
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); \
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); \
struct usbhs_mod *mod = usbhs_mod_get_current(priv); \
if (!mod) \
return; \
if (enable) \
mod->irq_##status |= (1 << usbhs_pipe_number(pipe)); \
else \
mod->irq_##status &= ~(1 << usbhs_pipe_number(pipe)); \
usbhs_irq_callback_update(priv, mod); \
})
static void usbhsg_irq_empty_ctrl(struct usbhsg_uep *uep, int enable)
{
usbhsg_irq_callback_ctrl(uep, bempsts, enable);
}
static void usbhsg_irq_ready_ctrl(struct usbhsg_uep *uep, int enable)
{
usbhsg_irq_callback_ctrl(uep, brdysts, enable);
}
/*
* handler function
*/
static int usbhsg_try_run_ctrl_stage_end(struct usbhsg_uep *uep,
struct usbhsg_request *ureq)
{
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
/*
********* assume under spin lock *********
*/
usbhs_dcp_control_transfer_done(pipe);
usbhsg_queue_pop(uep, ureq, 0);
return 0;
}
static int usbhsg_try_run_send_packet(struct usbhsg_uep *uep,
struct usbhsg_request *ureq)
{
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct usb_request *req = &ureq->req;
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
void *buf;
int remainder, send;
int is_done = 0;
int enable;
int maxp;
/*
********* assume under spin lock *********
*/
maxp = usbhs_pipe_get_maxpacket(pipe);
buf = req->buf + req->actual;
remainder = req->length - req->actual;
send = usbhs_fifo_write(pipe, buf, remainder);
/*
* send < 0 : pipe busy
* send = 0 : send zero packet
* send > 0 : send data
*
* send <= max_packet
*/
if (send > 0)
req->actual += send;
/* send all packet ? */
if (send < remainder)
is_done = 0; /* there are remainder data */
else if (send < maxp)
is_done = 1; /* short packet */
else
is_done = !req->zero; /* send zero packet ? */
dev_dbg(dev, " send %d (%d/ %d/ %d/ %d)\n",
usbhs_pipe_number(pipe),
remainder, send, is_done, req->zero);
/*
* enable interrupt and send again in irq handler
* if it still have remainder data which should be sent.
*/
enable = !is_done;
uep->handler->irq_mask(uep, enable);
/*
* usbhs_fifo_enable execute
* - after callback_update,
* - before queue_pop / stage_end
*/
usbhs_fifo_enable(pipe);
/*
* all data were sent ?
*/
if (is_done) {
/* it care below call in
"function mode" */
if (usbhsg_is_dcp(uep))
usbhs_dcp_control_transfer_done(pipe);
usbhsg_queue_pop(uep, ureq, 0);
}
return 0;
}
static int usbhsg_prepare_send_packet(struct usbhsg_uep *uep,
struct usbhsg_request *ureq)
{
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
/*
********* assume under spin lock *********
*/
usbhs_fifo_prepare_write(pipe);
usbhsg_try_run_send_packet(uep, ureq);
return 0;
}
static int usbhsg_try_run_receive_packet(struct usbhsg_uep *uep,
struct usbhsg_request *ureq)
{
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct usb_request *req = &ureq->req;
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
void *buf;
int maxp;
int remainder, recv;
int is_done = 0;
/*
********* assume under spin lock *********
*/
maxp = usbhs_pipe_get_maxpacket(pipe);
buf = req->buf + req->actual;
remainder = req->length - req->actual;
recv = usbhs_fifo_read(pipe, buf, remainder);
/*
* recv < 0 : pipe busy
* recv >= 0 : receive data
*
* recv <= max_packet
*/
if (recv < 0)
return -EBUSY;
/* update parameters */
req->actual += recv;
if ((recv == remainder) || /* receive all data */
(recv < maxp)) /* short packet */
is_done = 1;
dev_dbg(dev, " recv %d (%d/ %d/ %d/ %d)\n",
usbhs_pipe_number(pipe),
remainder, recv, is_done, req->zero);
/* read all data ? */
if (is_done) {
int disable = 0;
uep->handler->irq_mask(uep, disable);
usbhs_fifo_disable(pipe);
usbhsg_queue_pop(uep, ureq, 0);
}
return 0;
}
static int usbhsg_prepare_receive_packet(struct usbhsg_uep *uep,
struct usbhsg_request *ureq)
{
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
int enable = 1;
int ret;
/*
********* assume under spin lock *********
*/
ret = usbhs_fifo_prepare_read(pipe);
if (ret < 0)
return ret;
/*
* data will be read in interrupt handler
*/
uep->handler->irq_mask(uep, enable);
return ret;
}
static struct usbhsg_pipe_handle usbhsg_handler_send_by_empty = {
.prepare = usbhsg_prepare_send_packet,
.try_run = usbhsg_try_run_send_packet,
.irq_mask = usbhsg_irq_empty_ctrl,
};
static struct usbhsg_pipe_handle usbhsg_handler_send_by_ready = {
.prepare = usbhsg_prepare_send_packet,
.try_run = usbhsg_try_run_send_packet,
.irq_mask = usbhsg_irq_ready_ctrl,
};
static struct usbhsg_pipe_handle usbhsg_handler_recv_by_ready = {
.prepare = usbhsg_prepare_receive_packet,
.try_run = usbhsg_try_run_receive_packet,
.irq_mask = usbhsg_irq_ready_ctrl,
};
static struct usbhsg_pipe_handle usbhsg_handler_ctrl_stage_end = {
.prepare = usbhsg_try_run_ctrl_stage_end,
.try_run = usbhsg_try_run_ctrl_stage_end,
};
/*
* DCP pipe can NOT use "ready interrupt" for "send"
* it should use "empty" interrupt.
* see
* "Operation" - "Interrupt Function" - "BRDY Interrupt"
*
* on the other hand, normal pipe can use "ready interrupt" for "send"
* even though it is single/double buffer
*/
#define usbhsg_handler_send_ctrl usbhsg_handler_send_by_empty
#define usbhsg_handler_recv_ctrl usbhsg_handler_recv_by_ready
#define usbhsg_handler_send_packet usbhsg_handler_send_by_ready
#define usbhsg_handler_recv_packet usbhsg_handler_recv_by_ready
/*
* USB_TYPE_STANDARD / clear feature functions
*/
static int usbhsg_recip_handler_std_control_done(struct usbhs_priv *priv,
struct usbhsg_uep *uep,
struct usb_ctrlrequest *ctrl)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
usbhs_dcp_control_transfer_done(pipe);
return 0;
}
static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv,
struct usbhsg_uep *uep,
struct usb_ctrlrequest *ctrl)
{
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) {
usbhs_fifo_disable(pipe);
usbhs_pipe_clear_sequence(pipe);
usbhs_fifo_enable(pipe);
}
usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
usbhsg_queue_prepare(uep);
return 0;
}
struct usbhsg_recip_handle req_clear_feature = {
.name = "clear feature",
.device = usbhsg_recip_handler_std_control_done,
.interface = usbhsg_recip_handler_std_control_done,
.endpoint = usbhsg_recip_handler_std_clear_endpoint,
};
/*
* USB_TYPE handler
*/
static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
struct usbhsg_recip_handle *handler,
struct usb_ctrlrequest *ctrl)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
struct usbhsg_uep *uep;
int recip = ctrl->bRequestType & USB_RECIP_MASK;
int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK;
int ret;
int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
struct usb_ctrlrequest *ctrl);
char *msg;
uep = usbhsg_gpriv_to_nth_uep(gpriv, nth);
switch (recip) {
case USB_RECIP_DEVICE:
msg = "DEVICE";
func = handler->device;
break;
case USB_RECIP_INTERFACE:
msg = "INTERFACE";
func = handler->interface;
break;
case USB_RECIP_ENDPOINT:
msg = "ENDPOINT";
func = handler->endpoint;
break;
default:
dev_warn(dev, "unsupported RECIP(%d)\n", recip);
func = NULL;
ret = -EINVAL;
}
if (func) {
dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg);
ret = func(priv, uep, ctrl);
}
return ret;
}
/*
* irq functions
*
* it will be called from usbhs_interrupt
*/
static int usbhsg_irq_dev_state(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
gpriv->gadget.speed = usbhs_status_get_usb_speed(irq_state);
dev_dbg(dev, "state = %x : speed : %d\n",
usbhs_status_get_device_state(irq_state),
gpriv->gadget.speed);
return 0;
}
static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
struct usb_ctrlrequest ctrl;
struct usbhsg_recip_handle *recip_handler = NULL;
int stage = usbhs_status_get_ctrl_stage(irq_state);
int ret = 0;
dev_dbg(dev, "stage = %d\n", stage);
/*
* see Manual
*
* "Operation"
* - "Interrupt Function"
* - "Control Transfer Stage Transition Interrupt"
* - Fig. "Control Transfer Stage Transitions"
*/
switch (stage) {
case READ_DATA_STAGE:
dcp->handler = &usbhsg_handler_send_ctrl;
break;
case WRITE_DATA_STAGE:
dcp->handler = &usbhsg_handler_recv_ctrl;
break;
case NODATA_STATUS_STAGE:
dcp->handler = &usbhsg_handler_ctrl_stage_end;
break;
default:
return ret;
}
/*
* get usb request
*/
usbhs_usbreq_get_val(priv, &ctrl);
switch (ctrl.bRequestType & USB_TYPE_MASK) {
case USB_TYPE_STANDARD:
switch (ctrl.bRequest) {
case USB_REQ_CLEAR_FEATURE:
recip_handler = &req_clear_feature;
break;
}
}
/*
* setup stage / run recip
*/
if (recip_handler)
ret = usbhsg_recip_run_handle(priv, recip_handler, &ctrl);
else
ret = gpriv->driver->setup(&gpriv->gadget, &ctrl);
if (ret < 0)
usbhs_fifo_stall(pipe);
return ret;
}
static int usbhsg_irq_empty(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhsg_uep *uep;
struct usbhs_pipe *pipe;
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
int i, ret;
if (!irq_state->bempsts) {
dev_err(dev, "debug %s !!\n", __func__);
return -EIO;
}
dev_dbg(dev, "irq empty [0x%04x]\n", irq_state->bempsts);
/*
* search interrupted "pipe"
* not "uep".
*/
usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
if (!(irq_state->bempsts & (1 << i)))
continue;
uep = usbhsg_pipe_to_uep(pipe);
ret = usbhsg_queue_handle(uep);
if (ret < 0)
dev_err(dev, "send error %d : %d\n", i, ret);
}
return 0;
}
static int usbhsg_irq_ready(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhsg_uep *uep;
struct usbhs_pipe *pipe;
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
int i, ret;
if (!irq_state->brdysts) {
dev_err(dev, "debug %s !!\n", __func__);
return -EIO;
}
dev_dbg(dev, "irq ready [0x%04x]\n", irq_state->brdysts);
/*
* search interrupted "pipe"
* not "uep".
*/
usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
if (!(irq_state->brdysts & (1 << i)))
continue;
uep = usbhsg_pipe_to_uep(pipe);
ret = usbhsg_queue_handle(uep);
if (ret < 0)
dev_err(dev, "receive error %d : %d\n", i, ret);
}
return 0;
}
/*
*
* usb_dcp_ops
*
*/
static int usbhsg_dcp_enable(struct usbhsg_uep *uep)
{
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
struct usbhs_pipe *pipe;
/*
********* assume under spin lock *********
*/
pipe = usbhs_dcp_malloc(priv);
if (!pipe)
return -EIO;
uep->pipe = pipe;
uep->pipe->mod_private = uep;
INIT_LIST_HEAD(&uep->list);
return 0;
}
#define usbhsg_dcp_disable usbhsg_pipe_disable
static int usbhsg_pipe_disable(struct usbhsg_uep *uep)
{
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct usbhsg_request *ureq;
int disable = 0;
/*
********* assume under spin lock *********
*/
usbhs_fifo_disable(pipe);
/*
* disable pipe irq
*/
usbhsg_irq_empty_ctrl(uep, disable);
usbhsg_irq_ready_ctrl(uep, disable);
while (1) {
ureq = usbhsg_queue_get(uep);
if (!ureq)
break;
usbhsg_queue_pop(uep, ureq, -ECONNRESET);
}
uep->pipe->mod_private = NULL;
uep->pipe = NULL;
return 0;
}
/*
*
* usb_ep_ops
*
*/
static int usbhsg_ep_enable(struct usb_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
struct usbhs_pipe *pipe;
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
int ret = -EIO;
/******************** spin lock ********************/
spin_lock_irqsave(lock, flags);
pipe = usbhs_pipe_malloc(priv, desc);
if (pipe) {
uep->pipe = pipe;
pipe->mod_private = uep;
INIT_LIST_HEAD(&uep->list);
if (usb_endpoint_dir_in(desc))
uep->handler = &usbhsg_handler_send_packet;
else
uep->handler = &usbhsg_handler_recv_packet;
ret = 0;
}
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ******************/
return ret;
}
static int usbhsg_ep_disable(struct usb_ep *ep)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
int ret;
/******************** spin lock ********************/
spin_lock_irqsave(lock, flags);
ret = usbhsg_pipe_disable(uep);
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ******************/
return ret;
}
static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep,
gfp_t gfp_flags)
{
struct usbhsg_request *ureq;
ureq = kzalloc(sizeof *ureq, gfp_flags);
if (!ureq)
return NULL;
INIT_LIST_HEAD(&ureq->node);
return &ureq->req;
}
static void usbhsg_ep_free_request(struct usb_ep *ep,
struct usb_request *req)
{
struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
WARN_ON(!list_empty(&ureq->node));
kfree(ureq);
}
static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req,
gfp_t gfp_flags)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
int ret = 0;
int is_locked;
/*
* CAUTION [*endpoint queue*]
*
* This function will be called from usb_request :: complete
* or usb driver timing.
* If this function is called from usb_request :: complete,
* it is already under spinlock on this driver.
* but it is called frm usb driver, this function should call spinlock.
*
* This function is using spin_trylock_irqsave to solve this issue.
* if "is_locked" is 1, this mean this function lock it.
* but if it is 0, this mean it is already under spin lock.
* see also
* CAUTION [*queue handler*]
* CAUTION [*request complete*]
*/
/******************** spin lock ********************/
is_locked = spin_trylock_irqsave(lock, flags);
/* param check */
if (usbhsg_is_not_connected(gpriv) ||
unlikely(!gpriv->driver) ||
unlikely(!pipe))
ret = -ESHUTDOWN;
else
usbhsg_queue_push(uep, ureq);
if (is_locked)
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ******************/
usbhsg_queue_prepare(uep);
return ret;
}
static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
int is_locked;
/*
* see
* CAUTION [*queue handler*]
* CAUTION [*endpoint queue*]
* CAUTION [*request complete*]
*/
/******************** spin lock ********************/
is_locked = spin_trylock_irqsave(lock, flags);
usbhsg_queue_pop(uep, ureq, -ECONNRESET);
if (is_locked)
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ******************/
return 0;
}
static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
int ret = -EAGAIN;
int is_locked;
/*
* see
* CAUTION [*queue handler*]
* CAUTION [*endpoint queue*]
* CAUTION [*request complete*]
*/
/******************** spin lock ********************/
is_locked = spin_trylock_irqsave(lock, flags);
if (!usbhsg_queue_get(uep)) {
dev_dbg(dev, "set halt %d (pipe %d)\n",
halt, usbhs_pipe_number(pipe));
if (halt)
usbhs_fifo_stall(pipe);
else
usbhs_fifo_disable(pipe);
if (halt && wedge)
usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE);
else
usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE);
ret = 0;
}
if (is_locked)
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ******************/
return ret;
}
static int usbhsg_ep_set_halt(struct usb_ep *ep, int value)
{
return __usbhsg_ep_set_halt_wedge(ep, value, 0);
}
static int usbhsg_ep_set_wedge(struct usb_ep *ep)
{
return __usbhsg_ep_set_halt_wedge(ep, 1, 1);
}
static struct usb_ep_ops usbhsg_ep_ops = {
.enable = usbhsg_ep_enable,
.disable = usbhsg_ep_disable,
.alloc_request = usbhsg_ep_alloc_request,
.free_request = usbhsg_ep_free_request,
.queue = usbhsg_ep_queue,
.dequeue = usbhsg_ep_dequeue,
.set_halt = usbhsg_ep_set_halt,
.set_wedge = usbhsg_ep_set_wedge,
};
/*
* usb module start/end
*/
static int usbhsg_try_start(struct usbhs_priv *priv, u32 status)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
struct device *dev = usbhs_priv_to_dev(priv);
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
/******************** spin lock ********************/
spin_lock_irqsave(lock, flags);
/*
* enable interrupt and systems if ready
*/
usbhsg_status_set(gpriv, status);
if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)))
goto usbhsg_try_start_unlock;
dev_dbg(dev, "start gadget\n");
/*
* pipe initialize and enable DCP
*/
usbhs_pipe_init(priv);
usbhsg_dcp_enable(dcp);
/*
* system config enble
* - HI speed
* - function
* - usb module
*/
usbhs_sys_hispeed_ctrl(priv, 1);
usbhs_sys_function_ctrl(priv, 1);
usbhs_sys_usb_ctrl(priv, 1);
/*
* enable irq callback
*/
mod->irq_dev_state = usbhsg_irq_dev_state;
mod->irq_ctrl_stage = usbhsg_irq_ctrl_stage;
mod->irq_empty = usbhsg_irq_empty;
mod->irq_ready = usbhsg_irq_ready;
mod->irq_bempsts = 0;
mod->irq_brdysts = 0;
usbhs_irq_callback_update(priv, mod);
usbhsg_try_start_unlock:
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ********************/
return 0;
}
static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
struct device *dev = usbhs_priv_to_dev(priv);
spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv);
unsigned long flags;
/******************** spin lock ********************/
spin_lock_irqsave(lock, flags);
/*
* disable interrupt and systems if 1st try
*/
usbhsg_status_clr(gpriv, status);
if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
!usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))
goto usbhsg_try_stop_unlock;
/* disable all irq */
mod->irq_dev_state = NULL;
mod->irq_ctrl_stage = NULL;
mod->irq_empty = NULL;
mod->irq_ready = NULL;
mod->irq_bempsts = 0;
mod->irq_brdysts = 0;
usbhs_irq_callback_update(priv, mod);
usbhsg_dcp_disable(dcp);
gpriv->gadget.speed = USB_SPEED_UNKNOWN;
/* disable sys */
usbhs_sys_hispeed_ctrl(priv, 0);
usbhs_sys_function_ctrl(priv, 0);
usbhs_sys_usb_ctrl(priv, 0);
spin_unlock_irqrestore(lock, flags);
/******************** spin unlock ********************/
if (gpriv->driver &&
gpriv->driver->disconnect)
gpriv->driver->disconnect(&gpriv->gadget);
dev_dbg(dev, "stop gadget\n");
return 0;
usbhsg_try_stop_unlock:
spin_unlock_irqrestore(lock, flags);
return 0;
}
/*
*
* linux usb function
*
*/
struct usbhsg_gpriv *the_controller;
int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *))
{
struct usbhsg_gpriv *gpriv = the_controller;
struct usbhs_priv *priv;
struct device *dev;
int ret;
if (!bind ||
!driver ||
!driver->setup ||
driver->speed != USB_SPEED_HIGH)
return -EINVAL;
if (!gpriv)
return -ENODEV;
if (gpriv->driver)
return -EBUSY;
dev = usbhsg_gpriv_to_dev(gpriv);
priv = usbhsg_gpriv_to_priv(gpriv);
/* first hook up the driver ... */
gpriv->driver = driver;
gpriv->gadget.dev.driver = &driver->driver;
ret = device_add(&gpriv->gadget.dev);
if (ret) {
dev_err(dev, "device_add error %d\n", ret);
goto add_fail;
}
ret = bind(&gpriv->gadget);
if (ret) {
dev_err(dev, "bind to driver %s error %d\n",
driver->driver.name, ret);
goto bind_fail;
}
dev_dbg(dev, "bind %s\n", driver->driver.name);
return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD);
bind_fail:
device_del(&gpriv->gadget.dev);
add_fail:
gpriv->driver = NULL;
gpriv->gadget.dev.driver = NULL;
return ret;
}
EXPORT_SYMBOL(usb_gadget_probe_driver);
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
{
struct usbhsg_gpriv *gpriv = the_controller;
struct usbhs_priv *priv;
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
if (!gpriv)
return -ENODEV;
if (!driver ||
!driver->unbind ||
driver != gpriv->driver)
return -EINVAL;
dev = usbhsg_gpriv_to_dev(gpriv);
priv = usbhsg_gpriv_to_priv(gpriv);
usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD);
device_del(&gpriv->gadget.dev);
gpriv->driver = NULL;
if (driver->disconnect)
driver->disconnect(&gpriv->gadget);
driver->unbind(&gpriv->gadget);
dev_dbg(dev, "unbind %s\n", driver->driver.name);
return 0;
}
EXPORT_SYMBOL(usb_gadget_unregister_driver);
/*
* usb gadget ops
*/
static int usbhsg_get_frame(struct usb_gadget *gadget)
{
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
return usbhs_frame_get_num(priv);
}
static struct usb_gadget_ops usbhsg_gadget_ops = {
.get_frame = usbhsg_get_frame,
};
static int usbhsg_start(struct usbhs_priv *priv)
{
return usbhsg_try_start(priv, USBHSG_STATUS_STARTED);
}
static int usbhsg_stop(struct usbhs_priv *priv)
{
return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED);
}
int __devinit usbhs_mod_gadget_probe(struct usbhs_priv *priv)
{
struct usbhsg_gpriv *gpriv;
struct usbhsg_uep *uep;
struct device *dev = usbhs_priv_to_dev(priv);
int pipe_size = usbhs_get_dparam(priv, pipe_size);
int i;
gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL);
if (!gpriv) {
dev_err(dev, "Could not allocate gadget priv\n");
return -ENOMEM;
}
uep = kzalloc(sizeof(struct usbhsg_uep) * pipe_size, GFP_KERNEL);
if (!uep) {
dev_err(dev, "Could not allocate ep\n");
goto usbhs_mod_gadget_probe_err_gpriv;
}
/*
* CAUTION
*
* There is no guarantee that it is possible to access usb module here.
* Don't accesses to it.
* The accesse will be enable after "usbhsg_start"
*/
/*
* register itself
*/
usbhs_mod_register(priv, &gpriv->mod, USBHS_GADGET);
/* init gpriv */
gpriv->mod.name = "gadget";
gpriv->mod.start = usbhsg_start;
gpriv->mod.stop = usbhsg_stop;
gpriv->uep = uep;
gpriv->uep_size = pipe_size;
usbhsg_status_init(gpriv);
/*
* init gadget
*/
device_initialize(&gpriv->gadget.dev);
dev_set_name(&gpriv->gadget.dev, "gadget");
gpriv->gadget.dev.parent = dev;
gpriv->gadget.name = "renesas_usbhs_udc";
gpriv->gadget.ops = &usbhsg_gadget_ops;
gpriv->gadget.is_dualspeed = 1;
INIT_LIST_HEAD(&gpriv->gadget.ep_list);
/*
* init usb_ep
*/
usbhsg_for_each_uep_with_dcp(uep, gpriv, i) {
uep->gpriv = gpriv;
snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i);
uep->ep.name = uep->ep_name;
uep->ep.ops = &usbhsg_ep_ops;
INIT_LIST_HEAD(&uep->ep.ep_list);
INIT_LIST_HEAD(&uep->list);
/* init DCP */
if (usbhsg_is_dcp(uep)) {
gpriv->gadget.ep0 = &uep->ep;
uep->ep.maxpacket = 64;
}
/* init normal pipe */
else {
uep->ep.maxpacket = 512;
list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
}
}
the_controller = gpriv;
dev_info(dev, "gadget probed\n");
return 0;
usbhs_mod_gadget_probe_err_gpriv:
kfree(gpriv);
return -ENOMEM;
}
void __devexit usbhs_mod_gadget_remove(struct usbhs_priv *priv)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
kfree(gpriv);
}
drivers/usb/renesas_usbhs/pipe.c 0 → 100644
View file @ 50ee9339
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/slab.h>
#include "./common.h"
#include "./pipe.h"
/*
* macros
*/
#define usbhsp_priv_to_pipeinfo(pr) (&(pr)->pipe_info)
#define usbhsp_pipe_to_priv(p) ((p)->priv)
#define usbhsp_addr_offset(p) ((usbhs_pipe_number(p) - 1) * 2)
#define usbhsp_is_dcp(p) ((p)->priv->pipe_info.pipe == (p))
#define usbhsp_flags_set(p, f) ((p)->flags |= USBHS_PIPE_FLAGS_##f)
#define usbhsp_flags_clr(p, f) ((p)->flags &= ~USBHS_PIPE_FLAGS_##f)
#define usbhsp_flags_has(p, f) ((p)->flags & USBHS_PIPE_FLAGS_##f)
#define usbhsp_flags_init(p) do {(p)->flags = 0; } while (0)
#define usbhsp_type(p) ((p)->pipe_type)
#define usbhsp_type_is(p, t) ((p)->pipe_type == t)
/*
* for debug
*/
static char *usbhsp_pipe_name[] = {
[USB_ENDPOINT_XFER_CONTROL] = "DCP",
[USB_ENDPOINT_XFER_BULK] = "BULK",
[USB_ENDPOINT_XFER_INT] = "INT",
[USB_ENDPOINT_XFER_ISOC] = "ISO",
};
/*
* usb request functions
*/
void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
{
u16 val;
val = usbhs_read(priv, USBREQ);
req->bRequest = (val >> 8) & 0xFF;
req->bRequestType = (val >> 0) & 0xFF;
req->wValue = usbhs_read(priv, USBVAL);
req->wIndex = usbhs_read(priv, USBINDX);
req->wLength = usbhs_read(priv, USBLENG);
}
void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
{
usbhs_write(priv, USBREQ, (req->bRequest << 8) | req->bRequestType);
usbhs_write(priv, USBVAL, req->wValue);
usbhs_write(priv, USBINDX, req->wIndex);
usbhs_write(priv, USBLENG, req->wLength);
}
/*
* DCPCTR/PIPEnCTR functions
*/
static void usbhsp_pipectrl_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
int offset = usbhsp_addr_offset(pipe);
if (usbhsp_is_dcp(pipe))
usbhs_bset(priv, DCPCTR, mask, val);
else
usbhs_bset(priv, PIPEnCTR + offset, mask, val);
}
static u16 usbhsp_pipectrl_get(struct usbhs_pipe *pipe)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
int offset = usbhsp_addr_offset(pipe);
if (usbhsp_is_dcp(pipe))
return usbhs_read(priv, DCPCTR);
else
return usbhs_read(priv, PIPEnCTR + offset);
}
/*
* DCP/PIPE functions
*/
static void __usbhsp_pipe_xxx_set(struct usbhs_pipe *pipe,
u16 dcp_reg, u16 pipe_reg,
u16 mask, u16 val)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
if (usbhsp_is_dcp(pipe))
usbhs_bset(priv, dcp_reg, mask, val);
else
usbhs_bset(priv, pipe_reg, mask, val);
}
static u16 __usbhsp_pipe_xxx_get(struct usbhs_pipe *pipe,
u16 dcp_reg, u16 pipe_reg)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
if (usbhsp_is_dcp(pipe))
return usbhs_read(priv, dcp_reg);
else
return usbhs_read(priv, pipe_reg);
}
/*
* DCPCFG/PIPECFG functions
*/
static void usbhsp_pipe_cfg_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
{
__usbhsp_pipe_xxx_set(pipe, DCPCFG, PIPECFG, mask, val);
}
/*
* PIPEBUF
*/
static void usbhsp_pipe_buf_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
{
if (usbhsp_is_dcp(pipe))
return;
__usbhsp_pipe_xxx_set(pipe, 0, PIPEBUF, mask, val);
}
/*
* DCPMAXP/PIPEMAXP
*/
static void usbhsp_pipe_maxp_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
{
__usbhsp_pipe_xxx_set(pipe, DCPMAXP, PIPEMAXP, mask, val);
}
static u16 usbhsp_pipe_maxp_get(struct usbhs_pipe *pipe)
{
return __usbhsp_pipe_xxx_get(pipe, DCPMAXP, PIPEMAXP);
}
/*
* pipe control functions
*/
static void usbhsp_pipe_select(struct usbhs_pipe *pipe)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
/*
* On pipe, this is necessary before
* accesses to below registers.
*
* PIPESEL : usbhsp_pipe_select
* PIPECFG : usbhsp_pipe_cfg_xxx
* PIPEBUF : usbhsp_pipe_buf_xxx
* PIPEMAXP : usbhsp_pipe_maxp_xxx
* PIPEPERI
*/
/*
* if pipe is dcp, no pipe is selected.
* it is no problem, because dcp have its register
*/
usbhs_write(priv, PIPESEL, 0xF & usbhs_pipe_number(pipe));
}
static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
struct device *dev = usbhs_priv_to_dev(priv);
int timeout = 1024;
u16 val;
/*
* make sure....
*
* Modify these bits when CSSTS = 0, PID = NAK, and no pipe number is
* specified by the CURPIPE bits.
* When changing the setting of this bit after changing
* the PID bits for the selected pipe from BUF to NAK,
* check that CSSTS = 0 and PBUSY = 0.
*/
/*
* CURPIPE bit = 0
*
* see also
* "Operation"
* - "Pipe Control"
* - "Pipe Control Registers Switching Procedure"
*/
usbhs_write(priv, CFIFOSEL, 0);
do {
val = usbhsp_pipectrl_get(pipe);
val &= CSSTS | PID_MASK;
if (!val)
return 0;
udelay(10);
} while (timeout--);
/*
* force NAK
*/
timeout = 1024;
usbhs_fifo_disable(pipe);
do {
val = usbhsp_pipectrl_get(pipe);
val &= PBUSY;
if (!val)
return 0;
} while (timeout--);
dev_err(dev, "pipe barrier failed\n");
return -EBUSY;
}
static int usbhsp_pipe_is_accessible(struct usbhs_pipe *pipe)
{
u16 val;
val = usbhsp_pipectrl_get(pipe);
if (val & BSTS)
return 0;
return -EBUSY;
}
/*
* PID ctrl
*/
static void __usbhsp_pid_try_nak_if_stall(struct usbhs_pipe *pipe)
{
u16 pid = usbhsp_pipectrl_get(pipe);
pid &= PID_MASK;
/*
* see
* "Pipe n Control Register" - "PID"
*/
switch (pid) {
case PID_STALL11:
usbhsp_pipectrl_set(pipe, PID_MASK, PID_STALL10);
/* fall-through */
case PID_STALL10:
usbhsp_pipectrl_set(pipe, PID_MASK, PID_NAK);
}
}
void usbhs_fifo_disable(struct usbhs_pipe *pipe)
{
/* see "Pipe n Control Register" - "PID" */
__usbhsp_pid_try_nak_if_stall(pipe);
usbhsp_pipectrl_set(pipe, PID_MASK, PID_NAK);
}
void usbhs_fifo_enable(struct usbhs_pipe *pipe)
{
/* see "Pipe n Control Register" - "PID" */
__usbhsp_pid_try_nak_if_stall(pipe);
usbhsp_pipectrl_set(pipe, PID_MASK, PID_BUF);
}
void usbhs_fifo_stall(struct usbhs_pipe *pipe)
{
u16 pid = usbhsp_pipectrl_get(pipe);
pid &= PID_MASK;
/*
* see
* "Pipe n Control Register" - "PID"
*/
switch (pid) {
case PID_NAK:
usbhsp_pipectrl_set(pipe, PID_MASK, PID_STALL10);
break;
case PID_BUF:
usbhsp_pipectrl_set(pipe, PID_MASK, PID_STALL11);
break;
}
}
/*
* CFIFO ctrl
*/
void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
usbhs_bset(priv, CFIFOCTR, BVAL, BVAL);
}
static void usbhsp_fifo_clear(struct usbhs_pipe *pipe)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
usbhs_write(priv, CFIFOCTR, BCLR);
}
static int usbhsp_fifo_barrier(struct usbhs_priv *priv)
{
int timeout = 1024;
do {
/* The FIFO port is accessible */
if (usbhs_read(priv, CFIFOCTR) & FRDY)
return 0;
udelay(10);
} while (timeout--);
return -EBUSY;
}
static int usbhsp_fifo_rcv_len(struct usbhs_priv *priv)
{
return usbhs_read(priv, CFIFOCTR) & DTLN_MASK;
}
static int usbhsp_fifo_select(struct usbhs_pipe *pipe, int write)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
struct device *dev = usbhs_priv_to_dev(priv);
int timeout = 1024;
u16 mask = ((1 << 5) | 0xF); /* mask of ISEL | CURPIPE */
u16 base = usbhs_pipe_number(pipe); /* CURPIPE */
if (usbhsp_is_dcp(pipe))
base |= (1 == write) << 5; /* ISEL */
/* "base" will be used below */
usbhs_write(priv, CFIFOSEL, base | MBW_32);
/* check ISEL and CURPIPE value */
while (timeout--) {
if (base == (mask & usbhs_read(priv, CFIFOSEL)))
return 0;
udelay(10);
}
dev_err(dev, "fifo select error\n");
return -EIO;
}
int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe)
{
int ret;
ret = usbhsp_fifo_select(pipe, 1);
if (ret < 0)
return ret;
usbhsp_fifo_clear(pipe);
return ret;
}
int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
void __iomem *addr = priv->base + CFIFO;
int maxp = usbhs_pipe_get_maxpacket(pipe);
int total_len;
int i, ret;
ret = usbhsp_pipe_is_accessible(pipe);
if (ret < 0)
return ret;
ret = usbhs_fifo_prepare_write(pipe);
if (ret < 0)
return ret;
ret = usbhsp_fifo_barrier(priv);
if (ret < 0)
return ret;
len = min(len, maxp);
total_len = len;
/*
* FIXME
*
* 32-bit access only
*/
if (len >= 4 &&
!((unsigned long)buf & 0x03)) {
iowrite32_rep(addr, buf, len / 4);
len %= 4;
buf += total_len - len;
}
/* the rest operation */
for (i = 0; i < len; i++)
iowrite8(buf[i], addr + (0x03 - (i & 0x03)));
if (total_len < maxp)
usbhs_fifo_send_terminator(pipe);
return total_len;
}
int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe)
{
int ret;
/*
* select pipe and enable it to prepare packet receive
*/
ret = usbhsp_fifo_select(pipe, 0);
if (ret < 0)
return ret;
usbhs_fifo_enable(pipe);
return ret;
}
int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
void __iomem *addr = priv->base + CFIFO;
int rcv_len;
int i, ret;
int total_len;
u32 data = 0;
ret = usbhsp_fifo_select(pipe, 0);
if (ret < 0)
return ret;
ret = usbhsp_fifo_barrier(priv);
if (ret < 0)
return ret;
rcv_len = usbhsp_fifo_rcv_len(priv);
/*
* Buffer clear if Zero-Length packet
*
* see
* "Operation" - "FIFO Buffer Memory" - "FIFO Port Function"
*/
if (0 == rcv_len) {
usbhsp_fifo_clear(pipe);
return 0;
}
len = min(rcv_len, len);
total_len = len;
/*
* FIXME
*
* 32-bit access only
*/
if (len >= 4 &&
!((unsigned long)buf & 0x03)) {
ioread32_rep(addr, buf, len / 4);
len %= 4;
buf += rcv_len - len;
}
/* the rest operation */
for (i = 0; i < len; i++) {
if (!(i & 0x03))
data = ioread32(addr);
buf[i] = (data >> ((i & 0x03) * 8)) & 0xff;
}
return total_len;
}
/*
* pipe setup
*/
static int usbhsp_possible_double_buffer(struct usbhs_pipe *pipe)
{
/*
* only ISO / BULK pipe can use double buffer
*/
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK) ||
usbhsp_type_is(pipe, USB_ENDPOINT_XFER_ISOC))
return 1;
return 0;
}
static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
const struct usb_endpoint_descriptor *desc,
int is_host)
{
u16 type = 0;
u16 bfre = 0;
u16 dblb = 0;
u16 cntmd = 0;
u16 dir = 0;
u16 epnum = 0;
u16 shtnak = 0;
u16 type_array[] = {
[USB_ENDPOINT_XFER_BULK] = TYPE_BULK,
[USB_ENDPOINT_XFER_INT] = TYPE_INT,
[USB_ENDPOINT_XFER_ISOC] = TYPE_ISO,
};
int is_double = usbhsp_possible_double_buffer(pipe);
if (usbhsp_is_dcp(pipe))
return -EINVAL;
/*
* PIPECFG
*
* see
* - "Register Descriptions" - "PIPECFG" register
* - "Features" - "Pipe configuration"
* - "Operation" - "Pipe Control"
*/
/* TYPE */
type = type_array[usbhsp_type(pipe)];
/* BFRE */
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_ISOC) ||
usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK))
bfre = 0; /* FIXME */
/* DBLB */
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_ISOC) ||
usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK))
dblb = (is_double) ? DBLB : 0;
/* CNTMD */
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK))
cntmd = 0; /* FIXME */
/* DIR */
if (usb_endpoint_dir_in(desc))
usbhsp_flags_set(pipe, IS_DIR_IN);
if ((is_host && usb_endpoint_dir_out(desc)) ||
(!is_host && usb_endpoint_dir_in(desc)))
dir |= DIR_OUT;
/* SHTNAK */
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK) &&
!dir)
shtnak = SHTNAK;
/* EPNUM */
epnum = 0xF & usb_endpoint_num(desc);
return type |
bfre |
dblb |
cntmd |
dir |
shtnak |
epnum;
}
static u16 usbhsp_setup_pipemaxp(struct usbhs_pipe *pipe,
const struct usb_endpoint_descriptor *desc,
int is_host)
{
/* host should set DEVSEL */
/* reutn MXPS */
return PIPE_MAXP_MASK & le16_to_cpu(desc->wMaxPacketSize);
}
static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe,
const struct usb_endpoint_descriptor *desc,
int is_host)
{
struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
struct device *dev = usbhs_priv_to_dev(priv);
int pipe_num = usbhs_pipe_number(pipe);
int is_double = usbhsp_possible_double_buffer(pipe);
u16 buff_size;
u16 bufnmb;
u16 bufnmb_cnt;
/*
* PIPEBUF
*
* see
* - "Register Descriptions" - "PIPEBUF" register
* - "Features" - "Pipe configuration"
* - "Operation" - "FIFO Buffer Memory"
* - "Operation" - "Pipe Control"
*
* ex) if pipe6 - pipe9 are USB_ENDPOINT_XFER_INT (SH7724)
*
* BUFNMB: PIPE
* 0: pipe0 (DCP 256byte)
* 1: -
* 2: -
* 3: -
* 4: pipe6 (INT 64byte)
* 5: pipe7 (INT 64byte)
* 6: pipe8 (INT 64byte)
* 7: pipe9 (INT 64byte)
* 8 - xx: free (for BULK, ISOC)
*/
/*
* FIXME
*
* it doesn't have good buffer allocator
*
* DCP : 256 byte
* BULK: 512 byte
* INT : 64 byte
* ISOC: 512 byte
*/
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_CONTROL))
buff_size = 256;
else if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_INT))
buff_size = 64;
else
buff_size = 512;
/* change buff_size to register value */
bufnmb_cnt = (buff_size / 64) - 1;
/* BUFNMB has been reserved for INT pipe
* see above */
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_INT)) {
bufnmb = pipe_num - 2;
} else {
bufnmb = info->bufnmb_last;
info->bufnmb_last += bufnmb_cnt + 1;
/*
* double buffer
*/
if (is_double)
info->bufnmb_last += bufnmb_cnt + 1;
}
dev_dbg(dev, "pipe : %d : buff_size 0x%x: bufnmb 0x%x\n",
pipe_num, buff_size, bufnmb);
return (0x1f & bufnmb_cnt) << 10 |
(0xff & bufnmb) << 0;
}
/*
* pipe control
*/
int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe)
{
u16 mask = usbhsp_is_dcp(pipe) ? DCP_MAXP_MASK : PIPE_MAXP_MASK;
usbhsp_pipe_select(pipe);
return (int)(usbhsp_pipe_maxp_get(pipe) & mask);
}
int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe)
{
return usbhsp_flags_has(pipe, IS_DIR_IN);
}
void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe)
{
usbhsp_pipectrl_set(pipe, SQCLR, SQCLR);
}
static struct usbhs_pipe *usbhsp_get_pipe(struct usbhs_priv *priv, u32 type)
{
struct usbhs_pipe *pos, *pipe;
int i;
/*
* find target pipe
*/
pipe = NULL;
usbhs_for_each_pipe_with_dcp(pos, priv, i) {
if (!usbhsp_type_is(pos, type))
continue;
if (usbhsp_flags_has(pos, IS_USED))
continue;
pipe = pos;
break;
}
if (!pipe)
return NULL;
/*
* initialize pipe flags
*/
usbhsp_flags_init(pipe);
usbhsp_flags_set(pipe, IS_USED);
return pipe;
}
void usbhs_pipe_init(struct usbhs_priv *priv)
{
struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
struct usbhs_pipe *pipe;
int i;
/*
* FIXME
*
* driver needs good allocator.
*
* find first free buffer area (BULK, ISOC)
* (DCP, INT area is fixed)
*
* buffer number 0 - 3 have been reserved for DCP
* see
* usbhsp_to_bufnmb
*/
info->bufnmb_last = 4;
usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_INT))
info->bufnmb_last++;
usbhsp_flags_init(pipe);
pipe->mod_private = NULL;
}
}
struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv,
const struct usb_endpoint_descriptor *desc)
{
struct device *dev = usbhs_priv_to_dev(priv);
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
struct usbhs_pipe *pipe;
int is_host = usbhs_mod_is_host(priv, mod);
int ret;
u16 pipecfg, pipebuf, pipemaxp;
pipe = usbhsp_get_pipe(priv, usb_endpoint_type(desc));
if (!pipe)
return NULL;
usbhs_fifo_disable(pipe);
/* make sure pipe is not busy */
ret = usbhsp_pipe_barrier(pipe);
if (ret < 0) {
dev_err(dev, "pipe setup failed %d\n", usbhs_pipe_number(pipe));
return NULL;
}
pipecfg = usbhsp_setup_pipecfg(pipe, desc, is_host);
pipebuf = usbhsp_setup_pipebuff(pipe, desc, is_host);
pipemaxp = usbhsp_setup_pipemaxp(pipe, desc, is_host);
/* buffer clear
* see PIPECFG :: BFRE */
usbhsp_pipectrl_set(pipe, ACLRM, ACLRM);
usbhsp_pipectrl_set(pipe, ACLRM, 0);
usbhsp_pipe_select(pipe);
usbhsp_pipe_cfg_set(pipe, 0xFFFF, pipecfg);
usbhsp_pipe_buf_set(pipe, 0xFFFF, pipebuf);
usbhsp_pipe_maxp_set(pipe, 0xFFFF, pipemaxp);
usbhs_pipe_clear_sequence(pipe);
dev_dbg(dev, "enable pipe %d : %s (%s)\n",
usbhs_pipe_number(pipe),
usbhsp_pipe_name[usb_endpoint_type(desc)],
usbhs_pipe_is_dir_in(pipe) ? "in" : "out");
return pipe;
}
/*
* dcp control
*/
struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv)
{
struct usbhs_pipe *pipe;
pipe = usbhsp_get_pipe(priv, USB_ENDPOINT_XFER_CONTROL);
if (!pipe)
return NULL;
/*
* dcpcfg : default
* dcpmaxp : default
* pipebuf : nothing to do
*/
usbhsp_pipe_select(pipe);
usbhs_pipe_clear_sequence(pipe);
return pipe;
}
void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe)
{
WARN_ON(!usbhsp_is_dcp(pipe));
usbhs_fifo_enable(pipe);
usbhsp_pipectrl_set(pipe, CCPL, CCPL);
}
/*
* pipe module function
*/
int usbhs_pipe_probe(struct usbhs_priv *priv)
{
struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
struct usbhs_pipe *pipe;
struct device *dev = usbhs_priv_to_dev(priv);
u32 *pipe_type = usbhs_get_dparam(priv, pipe_type);
int pipe_size = usbhs_get_dparam(priv, pipe_size);
int i;
/* This driver expects 1st pipe is DCP */
if (pipe_type[0] != USB_ENDPOINT_XFER_CONTROL) {
dev_err(dev, "1st PIPE is not DCP\n");
return -EINVAL;
}
info->pipe = kzalloc(sizeof(struct usbhs_pipe) * pipe_size, GFP_KERNEL);
if (!info->pipe) {
dev_err(dev, "Could not allocate pipe\n");
return -ENOMEM;
}
info->size = pipe_size;
/*
* init pipe
*/
usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
pipe->priv = priv;
usbhsp_type(pipe) = pipe_type[i] & USB_ENDPOINT_XFERTYPE_MASK;
dev_dbg(dev, "pipe %x\t: %s\n",
i, usbhsp_pipe_name[pipe_type[i]]);
}
return 0;
}
void usbhs_pipe_remove(struct usbhs_priv *priv)
{
struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
kfree(info->pipe);
}
drivers/usb/renesas_usbhs/pipe.h 0 → 100644
View file @ 50ee9339
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef RENESAS_USB_PIPE_H
#define RENESAS_USB_PIPE_H
#include "./common.h"
/*
* struct
*/
struct usbhs_pipe {
u32 pipe_type; /* USB_ENDPOINT_XFER_xxx */
struct usbhs_priv *priv;
u32 flags;
#define USBHS_PIPE_FLAGS_IS_USED (1 << 0)
#define USBHS_PIPE_FLAGS_IS_DIR_IN (1 << 1)
void *mod_private;
};
struct usbhs_pipe_info {
struct usbhs_pipe *pipe;
int size; /* array size of "pipe" */
int bufnmb_last; /* FIXME : driver needs good allocator */
};
/*
* pipe list
*/
#define __usbhs_for_each_pipe(start, pos, info, i) \
for (i = start, pos = (info)->pipe; \
i < (info)->size; \
i++, pos = (info)->pipe + i)
#define usbhs_for_each_pipe(pos, priv, i) \
__usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i)
#define usbhs_for_each_pipe_with_dcp(pos, priv, i) \
__usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i)
/*
* pipe module probe / remove
*/
int usbhs_pipe_probe(struct usbhs_priv *priv);
void usbhs_pipe_remove(struct usbhs_priv *priv);
/*
* cfifo
*/
int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len);
int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len);
int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe);
int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe);
void usbhs_fifo_enable(struct usbhs_pipe *pipe);
void usbhs_fifo_disable(struct usbhs_pipe *pipe);
void usbhs_fifo_stall(struct usbhs_pipe *pipe);
void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe);
/*
* usb request
*/
void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
/*
* pipe control
*/
struct usbhs_pipe
*usbhs_pipe_malloc(struct usbhs_priv *priv,
const struct usb_endpoint_descriptor *desc);
int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe);
void usbhs_pipe_init(struct usbhs_priv *priv);
int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe);
void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe);
#define usbhs_pipe_number(p) (((u32)(p) - (u32)(p)->priv->pipe_info.pipe) / \
sizeof(struct usbhs_pipe))
/*
* dcp control
*/
struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv);
void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe);
#endif /* RENESAS_USB_PIPE_H */
drivers/usb/serial/Kconfig
View file @ 50ee9339
......@@ -527,15 +527,6 @@ config USB_SERIAL_SAFE_PADDED
bool "USB Secure Encapsulated Driver - Padded"
depends on USB_SERIAL_SAFE
config USB_SERIAL_SAMBA
tristate "USB Atmel SAM Boot Assistant (SAM-BA) driver"
help
Say Y here if you want to access the SAM-BA boot application of an
Atmel AT91SAM device.
To compile this driver as a module, choose M here: the
module will be called sam-ba.
config USB_SERIAL_SIEMENS_MPI
tristate "USB Siemens MPI driver"
help
......
drivers/usb/serial/Makefile
View file @ 50ee9339
......@@ -48,7 +48,6 @@ obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o
obj-$(CONFIG_USB_SERIAL_QCAUX) += qcaux.o
obj-$(CONFIG_USB_SERIAL_QUALCOMM) += qcserial.o
obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o
obj-$(CONFIG_USB_SERIAL_SAMBA) += sam-ba.o
obj-$(CONFIG_USB_SERIAL_SIEMENS_MPI) += siemens_mpi.o
obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS) += sierra.o
obj-$(CONFIG_USB_SERIAL_SPCP8X5) += spcp8x5.o
......
drivers/usb/serial/sam-ba.c deleted 100644 → 0
View file @ f0e615c3
/*
* Atmel SAM Boot Assistant (SAM-BA) driver
*
* Copyright (C) 2010 Johan Hovold <jhovold@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#define DRIVER_VERSION "v1.0"
#define DRIVER_AUTHOR "Johan Hovold <jhovold@gmail.com>"
#define DRIVER_DESC "Atmel SAM Boot Assistant (SAM-BA) driver"
#define SAMBA_VENDOR_ID 0x3eb
#define SAMBA_PRODUCT_ID 0x6124
static int debug;
static const struct usb_device_id id_table[] = {
/*
* NOTE: Only match the CDC Data interface.
*/
{ USB_DEVICE_AND_INTERFACE_INFO(SAMBA_VENDOR_ID, SAMBA_PRODUCT_ID,
USB_CLASS_CDC_DATA, 0, 0) },
{ }
};
MODULE_DEVICE_TABLE(usb, id_table);
static struct usb_driver samba_driver = {
.name = "sam-ba",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
.no_dynamic_id = 1,
};
/*
* NOTE: The SAM-BA firmware cannot handle merged write requests so we cannot
* use the generic write implementation (which uses the port write fifo).
*/
static int samba_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct urb *urb;
unsigned long flags;
int result;
int i;
if (!count)
return 0;
count = min_t(int, count, port->bulk_out_size);
spin_lock_irqsave(&port->lock, flags);
if (!port->write_urbs_free) {
spin_unlock_irqrestore(&port->lock, flags);
return 0;
}
i = find_first_bit(&port->write_urbs_free,
ARRAY_SIZE(port->write_urbs));
__clear_bit(i, &port->write_urbs_free);
port->tx_bytes += count;
spin_unlock_irqrestore(&port->lock, flags);
urb = port->write_urbs[i];
memcpy(urb->transfer_buffer, buf, count);
urb->transfer_buffer_length = count;
usb_serial_debug_data(debug, &port->dev, __func__, count,
urb->transfer_buffer);
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result) {
dev_err(&port->dev, "%s - error submitting urb: %d\n",
__func__, result);
spin_lock_irqsave(&port->lock, flags);
__set_bit(i, &port->write_urbs_free);
port->tx_bytes -= count;
spin_unlock_irqrestore(&port->lock, flags);
return result;
}
return count;
}
static int samba_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
unsigned long flags;
unsigned long free;
int count;
int room;
spin_lock_irqsave(&port->lock, flags);
free = port->write_urbs_free;
spin_unlock_irqrestore(&port->lock, flags);
count = hweight_long(free);
room = count * port->bulk_out_size;
dbg("%s - returns %d", __func__, room);
return room;
}
static int samba_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
unsigned long flags;
int chars;
spin_lock_irqsave(&port->lock, flags);
chars = port->tx_bytes;
spin_unlock_irqrestore(&port->lock, flags);
dbg("%s - returns %d", __func__, chars);
return chars;
}
static void samba_write_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
unsigned long flags;
int i;
dbg("%s - port %d", __func__, port->number);
for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) {
if (port->write_urbs[i] == urb)
break;
}
spin_lock_irqsave(&port->lock, flags);
__set_bit(i, &port->write_urbs_free);
port->tx_bytes -= urb->transfer_buffer_length;
spin_unlock_irqrestore(&port->lock, flags);
if (urb->status)
dbg("%s - non-zero urb status: %d", __func__, urb->status);
usb_serial_port_softint(port);
}
static struct usb_serial_driver samba_device = {
.driver = {
.owner = THIS_MODULE,
.name = "sam-ba",
},
.usb_driver = &samba_driver,
.id_table = id_table,
.num_ports = 1,
.bulk_in_size = 512,
.bulk_out_size = 2048,
.write = samba_write,
.write_room = samba_write_room,
.chars_in_buffer = samba_chars_in_buffer,
.write_bulk_callback = samba_write_bulk_callback,
.throttle = usb_serial_generic_throttle,
.unthrottle = usb_serial_generic_unthrottle,
};
static int __init samba_init(void)
{
int retval;
retval = usb_serial_register(&samba_device);
if (retval)
return retval;
retval = usb_register(&samba_driver);
if (retval) {
usb_serial_deregister(&samba_device);
return retval;
}
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ": "
DRIVER_DESC "\n");
return 0;
}
static void __exit samba_exit(void)
{
usb_deregister(&samba_driver);
usb_serial_deregister(&samba_device);
}
module_init(samba_init);
module_exit(samba_exit);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Enable verbose debugging messages");
include/linux/usb/gadget.h
View file @ 50ee9339
......@@ -890,8 +890,8 @@ static inline void usb_free_descriptors(struct usb_descriptor_header **v)
/* utility wrapping a simple endpoint selection policy */
extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *,
struct usb_endpoint_descriptor *) __devinit;
struct usb_endpoint_descriptor *);
extern void usb_ep_autoconfig_reset(struct usb_gadget *) __devinit;
extern void usb_ep_autoconfig_reset(struct usb_gadget *);
#endif /* __LINUX_USB_GADGET_H */
include/linux/usb/renesas_usbhs.h 0 → 100644
View file @ 50ee9339
/*
* Renesas USB
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef RENESAS_USB_H
#define RENESAS_USB_H
#include <linux/platform_device.h>
#include <linux/usb/ch9.h>
/*
* module type
*
* it will be return value from get_id
*/
enum {
USBHS_HOST = 0,
USBHS_GADGET,
USBHS_MAX,
};
/*
* callback functions table for driver
*
* These functions are called from platform for driver.
* Callback function's pointer will be set before
* renesas_usbhs_platform_callback :: hardware_init was called
*/
struct renesas_usbhs_driver_callback {
int (*notify_hotplug)(struct platform_device *pdev);
};
/*
* callback functions for platform
*
* These functions are called from driver for platform
*/
struct renesas_usbhs_platform_callback {
/*
* option:
*
* Hardware init function for platform.
* it is called when driver was probed.
*/
int (*hardware_init)(struct platform_device *pdev);
/*
* option:
*
* Hardware exit function for platform.
* it is called when driver was removed
*/
void (*hardware_exit)(struct platform_device *pdev);
/*
* option:
*
* Phy reset for platform
*/
void (*phy_reset)(struct platform_device *pdev);
/*
* get USB ID function
* - USBHS_HOST
* - USBHS_GADGET
*/
int (*get_id)(struct platform_device *pdev);
/*
* get VBUS status function.
*/
int (*get_vbus)(struct platform_device *pdev);
};
/*
* parameters for renesas usbhs
*
* some register needs USB chip specific parameters.
* This struct show it to driver
*/
struct renesas_usbhs_driver_param {
/*
* pipe settings
*/
u32 *pipe_type; /* array of USB_ENDPOINT_XFER_xxx (from ep0) */
int pipe_size; /* pipe_type array size */
/*
* option:
*
* for BUSWAIT :: BWAIT
* */
int buswait_bwait;
};
/*
* option:
*
* platform information for renesas_usbhs driver.
*/
struct renesas_usbhs_platform_info {
/*
* option:
*
* platform set these functions before
* call platform_add_devices if needed
*/
struct renesas_usbhs_platform_callback platform_callback;
/*
* driver set these callback functions pointer.
* platform can use it on callback functions
*/
struct renesas_usbhs_driver_callback driver_callback;
/*
* option:
*
* driver use these param for some register
*/
struct renesas_usbhs_driver_param driver_param;
};
/*
* macro for platform
*/
#define renesas_usbhs_get_info(pdev)\
((struct renesas_usbhs_platform_info *)(pdev)->dev.platform_data)
#define renesas_usbhs_call_notify_hotplug(pdev) \
({ \
struct renesas_usbhs_driver_callback *dc; \
dc = &(renesas_usbhs_get_info(pdev)->driver_callback); \
if (dc) \
dc->notify_hotplug(pdev); \
})
#endif /* RENESAS_USB_H */
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